The ultimate goal of any sexual and reproductive health program is to ensure cost effectiveness, quality and sustainability. Reproductive health awareness is an educational approach which is both relevant and sensitive to many communities' existing sexual and reproductive health needs and concerns. When working with community groups, a participatory approach that includes reproductive health awareness concepts is a simple non-threatening way for programs to quickly expand beyond pure information giving and explore what reproductive health means to people. Although many community sexual and reproductive health programs do not the term reproductive health awareness, they use techniques similar to the reproductive health awareness education approach, when facilitating discussions about sexual or reproductive health. If reproductive health awareness is identified and included as one of the dimensions of future sexual and reproductive health programs, this will hopefully strengthen the program's overall quality and effectiveness.
{"title":"Reproductive health awareness: an important dimension to be integrated into existing sexual and reproductive health programs.","authors":"C Pyper","doi":"10.1023/a:1006588929396","DOIUrl":"https://doi.org/10.1023/a:1006588929396","url":null,"abstract":"<p><p>The ultimate goal of any sexual and reproductive health program is to ensure cost effectiveness, quality and sustainability. Reproductive health awareness is an educational approach which is both relevant and sensitive to many communities' existing sexual and reproductive health needs and concerns. When working with community groups, a participatory approach that includes reproductive health awareness concepts is a simple non-threatening way for programs to quickly expand beyond pure information giving and explore what reproductive health means to people. Although many community sexual and reproductive health programs do not the term reproductive health awareness, they use techniques similar to the reproductive health awareness education approach, when facilitating discussions about sexual or reproductive health. If reproductive health awareness is identified and included as one of the dimensions of future sexual and reproductive health programs, this will hopefully strengthen the program's overall quality and effectiveness.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"331-8"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006588929396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The early years of the CARE family planning and reproductive health program were geared primarily toward modern methods of contraception and providing services. However, new and fresh opportunities to address reproductive health awareness and natural family planning are now emerging as important options. In these programs, coordination and collaboration with other sectors such as food and nutrition, children's health and natural resource management, combined with more sophisticated approaches for assessing need and reaching communities with information, has resulted in more people being reached than ever before with appropriate options and opportunities for reproductive health awareness and care. There are examples of CARE projects from India, Peru and Nepal where activities which feature working across development sectors and engaging communities to address their individual and collective RH needs are featured. Ways to disseminate information about reproductive health are being broadened to include creative combinations of interpersonal, mass and folk media', whether it be an informal one-to-one counseling session with flipcharts, a community mobilization event, a multi-media campaign, or any combination thereof. Likewise, the target audience need not always be the women of reproductive age, not should the RH messengers always be the medical and public health professionals. What is critical in all of these instances is to craft strategies based on appropriate research and need, continuously monitor progress, refine approaches as necessary, track results and evaluate the process and impact of interventions leading to behavior change. The challenge is not insignificant, but the rewards to be reaped through the improved programs are clearly worth striving for.
{"title":"Breaking the mold: expanding options for reproductive health awareness: the CARE experience.","authors":"J Schubert, G Pillai, R Thorndahl","doi":"10.1023/a:1006597131213","DOIUrl":"https://doi.org/10.1023/a:1006597131213","url":null,"abstract":"<p><p>The early years of the CARE family planning and reproductive health program were geared primarily toward modern methods of contraception and providing services. However, new and fresh opportunities to address reproductive health awareness and natural family planning are now emerging as important options. In these programs, coordination and collaboration with other sectors such as food and nutrition, children's health and natural resource management, combined with more sophisticated approaches for assessing need and reaching communities with information, has resulted in more people being reached than ever before with appropriate options and opportunities for reproductive health awareness and care. There are examples of CARE projects from India, Peru and Nepal where activities which feature working across development sectors and engaging communities to address their individual and collective RH needs are featured. Ways to disseminate information about reproductive health are being broadened to include creative combinations of interpersonal, mass and folk media', whether it be an informal one-to-one counseling session with flipcharts, a community mobilization event, a multi-media campaign, or any combination thereof. Likewise, the target audience need not always be the women of reproductive age, not should the RH messengers always be the medical and public health professionals. What is critical in all of these instances is to craft strategies based on appropriate research and need, continuously monitor progress, refine approaches as necessary, track results and evaluate the process and impact of interventions leading to behavior change. The challenge is not insignificant, but the rewards to be reaped through the improved programs are clearly worth striving for.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"355-61"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006597131213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To protect and advocate for their own reproductive health, people of all ages can greatly benefit from enhanced body/self awareness and strong interpersonal communication skills. Body/self awareness and interpersonal communications, along with gender awareness and the integration of sexuality, are the fundamental components of a new approach to obtaining high quality health called reproductive health awareness.
{"title":"Body/self awareness and interpersonal communications: fundamental components of reproductive health awareness.","authors":"K Aumack-Yee","doi":"10.1023/a:1006584828487","DOIUrl":"https://doi.org/10.1023/a:1006584828487","url":null,"abstract":"<p><p>To protect and advocate for their own reproductive health, people of all ages can greatly benefit from enhanced body/self awareness and strong interpersonal communication skills. Body/self awareness and interpersonal communications, along with gender awareness and the integration of sexuality, are the fundamental components of a new approach to obtaining high quality health called reproductive health awareness.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"319-23"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006584828487","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Multi-method family planning programs are committed to informed free choice of contraceptives. Thus they are expected to provide information and education, and facilitate access to services for those individuals and couples who want to practice periodic abstinence. Various factors affect the commitment and ability of multi-method family planning programs for providing periodic abstinence services. These factors include the effectiveness and cost of the method, attitude and technical competence of service providers, information and education strategies, and approaches for providing services. These factors are discussed in this paper. Information on providing periodic abstinence in a multi-method service situation is very scarce. The need for research, particularly operations research, for gathering information to guide program managers and service providers in the integration of periodic abstinence services is discussed.
{"title":"Factors to address when periodic abstinence is offered by multi-method family planning programs.","authors":"C Huezo","doi":"10.1023/a:1006520408923","DOIUrl":"https://doi.org/10.1023/a:1006520408923","url":null,"abstract":"<p><p>Multi-method family planning programs are committed to informed free choice of contraceptives. Thus they are expected to provide information and education, and facilitate access to services for those individuals and couples who want to practice periodic abstinence. Various factors affect the commitment and ability of multi-method family planning programs for providing periodic abstinence services. These factors include the effectiveness and cost of the method, attitude and technical competence of service providers, information and education strategies, and approaches for providing services. These factors are discussed in this paper. Information on providing periodic abstinence in a multi-method service situation is very scarce. The need for research, particularly operations research, for gathering information to guide program managers and service providers in the integration of periodic abstinence services is discussed.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"261-7"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006520408923","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents demographic data about use of NFP in Europe and the factors which have been identified as influencing that very low use level. Experience with a new ovulation detection device in clinical trials and observations of its over-the-counter promotions is discussed in the context of what is already known about how to maximize uptake of contraception in main-stream service provision. Some suggestions are offered as to appropriate means of encouraging women who are using artificial methods or no method to understand enough about their natural fertile cycle to consider NFP as an acceptable option.
{"title":"Approaches for incorporating ovulation detection devices and home kits into learning NFP--implications for service delivery.","authors":"R J Kirkman","doi":"10.1023/a:1006572525762","DOIUrl":"https://doi.org/10.1023/a:1006572525762","url":null,"abstract":"<p><p>This paper presents demographic data about use of NFP in Europe and the factors which have been identified as influencing that very low use level. Experience with a new ovulation detection device in clinical trials and observations of its over-the-counter promotions is discussed in the context of what is already known about how to maximize uptake of contraception in main-stream service provision. Some suggestions are offered as to appropriate means of encouraging women who are using artificial methods or no method to understand enough about their natural fertile cycle to consider NFP as an acceptable option.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"269-72"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006572525762","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Is male reproductive health at risk? Longitudinal semen analysis studies.","authors":"C A Paulsen, N G Berman, C Wang","doi":"10.1023/a:1006535417584","DOIUrl":"https://doi.org/10.1023/a:1006535417584","url":null,"abstract":"","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"119-21"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006535417584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20228695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Objective: To equip the reader with the tools necessary to evaluate studies of natural family planning (NFP) effectiveness found in the literature and to make recommendations for future NFP effectiveness studies.
Design: Current standards to evaluate contraceptive method effectiveness are reviewed. A framework for evaluating reports on NFP is presented.
Results: Most NFP studies found in the literature are flawed in design and do not calculate pregnancy rates correctly. The results from the few well-designed studies are presented.
Discussion: Many factors influence NFP effectiveness, and these factors must be considered when evaluating published studies and designing future studies.
{"title":"Natural family planning effectiveness: evaluating published reports.","authors":"V Lamprecht, J Trussell","doi":"10.1023/a:1006595703472","DOIUrl":"https://doi.org/10.1023/a:1006595703472","url":null,"abstract":"<p><strong>Objective: </strong>To equip the reader with the tools necessary to evaluate studies of natural family planning (NFP) effectiveness found in the literature and to make recommendations for future NFP effectiveness studies.</p><p><strong>Design: </strong>Current standards to evaluate contraceptive method effectiveness are reviewed. A framework for evaluating reports on NFP is presented.</p><p><strong>Results: </strong>Most NFP studies found in the literature are flawed in design and do not calculate pregnancy rates correctly. The results from the few well-designed studies are presented.</p><p><strong>Discussion: </strong>Many factors influence NFP effectiveness, and these factors must be considered when evaluating published studies and designing future studies.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"155-65"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006595703472","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Natural methods of fertility regulation are acceptable in most cultures. Many couples worldwide do not wish to use contraceptives or do not have access to them but wish to limit their family size or lengthen the time between births. Barriers to expanding use of natural family planning (NFP) methods include a lack of providers who can teach NFP and a lack of time to teach and follow couples during the initial months of NFP use. If simple yet effective methods of NFP are available, then NFP could be introduced to a wider audience. Recently, calendar rules have been revised that use a set interval to identify fertile days. These new rules provide better coverage of fertile days and require less abstinence than the rules traditionally used with the calendar method. One of these new rules is being field tested in a pilot study in Brazil. Couples are asked to abstain from day 9-19 (inclusive) of the menstrual cycle, using a beaded necklace (the 'collar') as a mnemonic device. Focus groups with the teacher-monitors and in-depth interviews with female and male users were carried out to evaluate the acceptability of the 'collar' method. A preliminary analysis of these focus groups and interviews from the first site is presented.
{"title":"Simplifying NFP: preliminary report of a pilot study of the 'collar' method in Brazil.","authors":"A Faundes, V Lamprecht, M J Osis, B C Lopes","doi":"10.1023/a:1006547820310","DOIUrl":"https://doi.org/10.1023/a:1006547820310","url":null,"abstract":"<p><p>Natural methods of fertility regulation are acceptable in most cultures. Many couples worldwide do not wish to use contraceptives or do not have access to them but wish to limit their family size or lengthen the time between births. Barriers to expanding use of natural family planning (NFP) methods include a lack of providers who can teach NFP and a lack of time to teach and follow couples during the initial months of NFP use. If simple yet effective methods of NFP are available, then NFP could be introduced to a wider audience. Recently, calendar rules have been revised that use a set interval to identify fertile days. These new rules provide better coverage of fertile days and require less abstinence than the rules traditionally used with the calendar method. One of these new rules is being field tested in a pilot study in Brazil. Couples are asked to abstain from day 9-19 (inclusive) of the menstrual cycle, using a beaded necklace (the 'collar') as a mnemonic device. Focus groups with the teacher-monitors and in-depth interviews with female and male users were carried out to evaluate the acceptability of the 'collar' method. A preliminary analysis of these focus groups and interviews from the first site is presented.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"167-71"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006547820310","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Changes in cervical mucus occur during the proliferative phase of the menstrual cycle and are known to correlate with receptivity to sperm and to the endocrine milieu. Prior studies, however, have often lacked biological incisiveness and technical objectivity and precision. This study analyzed daily changes in mucus water content (hydration) prior to the LH surge (LH+0) in normal women, in relation to daily levels of serum LH, FSH, estradiol and progesterone, and to daily tests of sperm penetration of the mucus. Cervical mucus was studied for 12 cycles in 10 ovulating women. Three to ten mucus specimens were collected per cycle, over the days LH-8 to LH+0. Each specimen was subjected to measurement of both water content (hydration) and penetration by spermatozoa from fresh specimens of normal human semen. For the latter, a new microscale assay was developed and applied, which was amenable to very small volumes of mucus. The new technique determines objective measures of both the numbers of penetrating sperm (motile and non-motile) and the distance penetrated by the forward most vanguard sperm. In these experiments, variations in semen quality were controlled by performing a companion penetration assay in an artificial 1.5% polyacrylamide gel. The patterns of change in mucus hydration varied quantitatively among women, with preovulatory baseline levels ranging from 93.8-96.5%. All normal cycles (as defined by endocrine profiles) displayed a significant increase in hydration over a one-day period occurring 3-4 days before the LH peak. The magnitude of this shift varied among women between 2 and 3% (absolute hydration), a distinction well within the precision of the hydration assay. This quantum increase in hydration was more pronounced than the corresponding increase in serum estradiol on the same day. The change in mucus hydration, and the associated increase in sperm penetrability, were more consistent among cycles than the changes in reproductive hormones. There was a strong but non-linear correlation between mucus hydration and sperm penetrability. Once the value of hydration rose above approximately 97.5%, there was a substantial increase in penetrability. This 'cut-off point' in sperm penetrability was in the middle of the range of hydration values (across women) which preceded the quantum jump in hydration-which, itself, preceded the surge of LH. Hydration began to increase approximately 2 days before measurable increases in sperm penetration of the mucus in vitro. These results demonstrate that mucus hydration may be a valuable marker of the approach to ovulation and delineation of the fertile period. They also provide new methods for assessing sperm penetration into both large peri-ovulatory and very small samples of collected mucus.
{"title":"Analysis of pre-ovulatory changes in cervical mucus hydration and sperm penetrability.","authors":"D F Katz, D A Slade, S T Nakajima","doi":"10.1023/a:1006543719401","DOIUrl":"https://doi.org/10.1023/a:1006543719401","url":null,"abstract":"<p><p>Changes in cervical mucus occur during the proliferative phase of the menstrual cycle and are known to correlate with receptivity to sperm and to the endocrine milieu. Prior studies, however, have often lacked biological incisiveness and technical objectivity and precision. This study analyzed daily changes in mucus water content (hydration) prior to the LH surge (LH+0) in normal women, in relation to daily levels of serum LH, FSH, estradiol and progesterone, and to daily tests of sperm penetration of the mucus. Cervical mucus was studied for 12 cycles in 10 ovulating women. Three to ten mucus specimens were collected per cycle, over the days LH-8 to LH+0. Each specimen was subjected to measurement of both water content (hydration) and penetration by spermatozoa from fresh specimens of normal human semen. For the latter, a new microscale assay was developed and applied, which was amenable to very small volumes of mucus. The new technique determines objective measures of both the numbers of penetrating sperm (motile and non-motile) and the distance penetrated by the forward most vanguard sperm. In these experiments, variations in semen quality were controlled by performing a companion penetration assay in an artificial 1.5% polyacrylamide gel. The patterns of change in mucus hydration varied quantitatively among women, with preovulatory baseline levels ranging from 93.8-96.5%. All normal cycles (as defined by endocrine profiles) displayed a significant increase in hydration over a one-day period occurring 3-4 days before the LH peak. The magnitude of this shift varied among women between 2 and 3% (absolute hydration), a distinction well within the precision of the hydration assay. This quantum increase in hydration was more pronounced than the corresponding increase in serum estradiol on the same day. The change in mucus hydration, and the associated increase in sperm penetrability, were more consistent among cycles than the changes in reproductive hormones. There was a strong but non-linear correlation between mucus hydration and sperm penetrability. Once the value of hydration rose above approximately 97.5%, there was a substantial increase in penetrability. This 'cut-off point' in sperm penetrability was in the middle of the range of hydration values (across women) which preceded the quantum jump in hydration-which, itself, preceded the surge of LH. Hydration began to increase approximately 2 days before measurable increases in sperm penetration of the mucus in vitro. These results demonstrate that mucus hydration may be a valuable marker of the approach to ovulation and delineation of the fertile period. They also provide new methods for assessing sperm penetration into both large peri-ovulatory and very small samples of collected mucus.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"143-51"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006543719401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20228699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Georgetown University Institute for Reproductive Health has evolved a multi-dimensional approach to reproductive health education which has grown from their work in natural family planning and fertility awareness. This cohesive approach offers help to community, educational, and health organizations in providing knowledge and skills development in body/self-care, gender awareness, sexuality, and interpersonal communications.
{"title":"Reproductive health awareness: an integrated approach to obtaining a high quality of health.","authors":"M Marshall, V Jennings, J Cachan","doi":"10.1023/a:1006532811649","DOIUrl":"https://doi.org/10.1023/a:1006532811649","url":null,"abstract":"<p><p>The Georgetown University Institute for Reproductive Health has evolved a multi-dimensional approach to reproductive health education which has grown from their work in natural family planning and fertility awareness. This cohesive approach offers help to community, educational, and health organizations in providing knowledge and skills development in body/self-care, gender awareness, sexuality, and interpersonal communications.</p>","PeriodicalId":76977,"journal":{"name":"Advances in contraception : the official journal of the Society for the Advancement of Contraception","volume":"13 2-3","pages":"313-8"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1023/a:1006532811649","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20229823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}