{"title":"Community engagement in WHO guideline development.","authors":"Manjulaa Narasimhan, Patricia Mahecha Gutiérrez, Zoë Osborne, Muluba Habanyama, Karrie Worster, Carrie Martin, Angela Kaida","doi":"10.2471/BLT.24.291579","DOIUrl":"10.2471/BLT.24.291579","url":null,"abstract":"","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11418848/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142336266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01Epub Date: 2024-09-02DOI: 10.2471/BLT.24.291569
Eoin McGrath, Marisa R Herson, Matthew J Kuehnert, Karen Moniz, Zbigniew M Szczepiorkowski, Timothy L Pruett
In recent decades, considerable advances have been made in assuring the safety of blood transfusion and organ transplantation. However, with the increasing movement of medical products of human origin across international boundaries, there is a need to enhance global norms and governance. These products, which include blood, organs, tissues, cells, human milk and faecal microbiota, are today crucial for health care but they also pose unique risks due to their human origin, such as disease transmission and graft failure. Moreover, the demand for medical products of human origin often exceeds supply, leading to dependence on international supply chains, and emerging technologies like cell and gene therapy present further challenges because of their unproven efficacy and long-term risks. Current regulatory mechanisms, especially in low- and middle-income countries, are insufficient. The World Health Organization (WHO) has both the mandate and experience to lead the development of international quality and safety standards, consistent product nomenclature, and robust traceability and biovigilance systems. An international, multistakeholder approach is critical for addressing the complexities of how medical products of human origin are used globally and for ensuring their safety. This approach will require promoting uniform product descriptions, enhancing digital communication systems and leveraging existing resources to support countries in establishing regulations for these products. As illustrated by World Health Assembly resolution WHA77.4 on transplantation in 2024, WHO's ongoing efforts to ensure the safe, efficient and ethical use of medical products of human origin worldwide provide the opportunity to galvanize international cooperation on establishing norms.
{"title":"A WHO remit to improve global standards for medical products of human origin.","authors":"Eoin McGrath, Marisa R Herson, Matthew J Kuehnert, Karen Moniz, Zbigniew M Szczepiorkowski, Timothy L Pruett","doi":"10.2471/BLT.24.291569","DOIUrl":"10.2471/BLT.24.291569","url":null,"abstract":"<p><p>In recent decades, considerable advances have been made in assuring the safety of blood transfusion and organ transplantation. However, with the increasing movement of medical products of human origin across international boundaries, there is a need to enhance global norms and governance. These products, which include blood, organs, tissues, cells, human milk and faecal microbiota, are today crucial for health care but they also pose unique risks due to their human origin, such as disease transmission and graft failure. Moreover, the demand for medical products of human origin often exceeds supply, leading to dependence on international supply chains, and emerging technologies like cell and gene therapy present further challenges because of their unproven efficacy and long-term risks. Current regulatory mechanisms, especially in low- and middle-income countries, are insufficient. The World Health Organization (WHO) has both the mandate and experience to lead the development of international quality and safety standards, consistent product nomenclature, and robust traceability and biovigilance systems. An international, multistakeholder approach is critical for addressing the complexities of how medical products of human origin are used globally and for ensuring their safety. This approach will require promoting uniform product descriptions, enhancing digital communication systems and leveraging existing resources to support countries in establishing regulations for these products. As illustrated by World Health Assembly resolution WHA77.4 on transplantation in 2024, WHO's ongoing efforts to ensure the safe, efficient and ethical use of medical products of human origin worldwide provide the opportunity to galvanize international cooperation on establishing norms.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11418839/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Megan B Diamond, Toni Whistler, Karina Rando, Chioma Nwachukwu, Mukhlid Yousif
{"title":"Policy dimensions of global wastewater surveillance.","authors":"Megan B Diamond, Toni Whistler, Karina Rando, Chioma Nwachukwu, Mukhlid Yousif","doi":"10.2471/BLT.24.292245","DOIUrl":"10.2471/BLT.24.292245","url":null,"abstract":"","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362689/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Public health round-up.","authors":"","doi":"10.2471/BLT.24.010924","DOIUrl":"https://doi.org/10.2471/BLT.24.010924","url":null,"abstract":"","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-01Epub Date: 2024-06-25DOI: 10.2471/BLT.23.290854
Arnab Mukherji, Megha Rao, Sapna Desai, S V Subramanian, Gagandeep Kang, Vikram Patel
Objective: To develop a framework and index for measuring universal health coverage (UHC) at the district level in India and to assess progress towards UHC in the districts.
Methods: We adapted the framework of the World Health Organization and World Bank to develop a district-level UHC index (UHC d ). We used routinely collected health survey and programme data in India to calculate UHC d for 687 districts from geometric means of 24 tracer indicators in five tracer domains: reproductive, maternal, newborn and child health; infectious diseases; noncommunicable diseases; service capacity and access; and financial risk protection. UHC d is on a scale of 0% to 100%, with higher scores indicating better performance. We also assessed the degree of inequality within districts using a subset of 14 tracer indicators. The disadvantaged subgroups were based on four inequality dimensions: wealth quintile, urban-rural location, religion and social group.
Findings: The median UHC d was 43.9% (range: 26.4 to 69.4). Substantial geographical differences existed, with districts in southern states having higher UHC d than elsewhere in India. Service coverage indicator levels were greater than 60%, except for noncommunicable diseases and for service capacity and access. Health insurance coverage was limited, with about 10% of the population facing catastrophic and impoverishing health expenditure. Substantial wealth-based disparities in UHC were seen within districts.
Conclusion: Our study shows that UHC can be measured at the local level and can help national and subnational government develop prioritization frameworks by identifying health-care delivery and geographic hotspots where limited progress towards UHC is being made.
{"title":"District-level monitoring of universal health coverage, India.","authors":"Arnab Mukherji, Megha Rao, Sapna Desai, S V Subramanian, Gagandeep Kang, Vikram Patel","doi":"10.2471/BLT.23.290854","DOIUrl":"10.2471/BLT.23.290854","url":null,"abstract":"<p><strong>Objective: </strong>To develop a framework and index for measuring universal health coverage (UHC) at the district level in India and to assess progress towards UHC in the districts.</p><p><strong>Methods: </strong>We adapted the framework of the World Health Organization and World Bank to develop a district-level UHC index (UHC <i><sub>d</sub></i> ). We used routinely collected health survey and programme data in India to calculate UHC <i><sub>d</sub></i> for 687 districts from geometric means of 24 tracer indicators in five tracer domains: reproductive, maternal, newborn and child health; infectious diseases; noncommunicable diseases; service capacity and access; and financial risk protection. UHC <i><sub>d</sub></i> is on a scale of 0% to 100%, with higher scores indicating better performance. We also assessed the degree of inequality within districts using a subset of 14 tracer indicators. The disadvantaged subgroups were based on four inequality dimensions: wealth quintile, urban-rural location, religion and social group.</p><p><strong>Findings: </strong>The median UHC <i><sub>d</sub></i> was 43.9% (range: 26.4 to 69.4). Substantial geographical differences existed, with districts in southern states having higher UHC <i><sub>d</sub></i> than elsewhere in India. Service coverage indicator levels were greater than 60%, except for noncommunicable diseases and for service capacity and access. Health insurance coverage was limited, with about 10% of the population facing catastrophic and impoverishing health expenditure. Substantial wealth-based disparities in UHC were seen within districts.</p><p><strong>Conclusion: </strong>Our study shows that UHC can be measured at the local level and can help national and subnational government develop prioritization frameworks by identifying health-care delivery and geographic hotspots where limited progress towards UHC is being made.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362688/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-01Epub Date: 2024-07-04DOI: 10.2471/BLT.23.290636
Ally Kebby Abdallah, Suniva Haule, Reinhold Werlein, Valentino Mvanga, Patrick Delcroix, Jasmina Saric, Manfred Stoermer
Health-care technology is central to boosting the productivity and quality of health-care systems. In many sub-Saharan African countries, however, medical device management systems are weak or absent. The aim of this article is to illustrate, using a case study, how policy reforms can help ensure policy on health-care technology is translated into everyday practice and how an integrated systems approach can enhance the operation of medical device management. Between 2011 and 2023, a plan to improve medical device management systems in the United Republic of Tanzania was developed and implemented through Swiss-Tanzanian cooperation within the Health Promotion and System Strengthening Project. The availability of biomedical engineers was increased through new training courses and the creation of permanent positions in government. Moreover, additional district and regional maintenance and repair workshops were built, and a National Centre for Calibration and Training was established to ensure the correct functioning of medical devices. The introduction of an electronic medical device management system provided health facilities and the health ministry with data on the operational status of medical devices and the need for repairs and spare parts. Every level of government was encouraged to allocate more human and financial resources to medical device management. Following this decade-long effort, the percentage of functioning equipment increased substantially, and costs were reduced by repairing rather than replacing equipment. The project also demonstrated the value of an integrated, system-strengthening approach that considered personnel, maintenance and repair facilities, documentation and management, and government policy and budgeting.
{"title":"Medical device management reform, United Republic of Tanzania.","authors":"Ally Kebby Abdallah, Suniva Haule, Reinhold Werlein, Valentino Mvanga, Patrick Delcroix, Jasmina Saric, Manfred Stoermer","doi":"10.2471/BLT.23.290636","DOIUrl":"10.2471/BLT.23.290636","url":null,"abstract":"<p><p>Health-care technology is central to boosting the productivity and quality of health-care systems. In many sub-Saharan African countries, however, medical device management systems are weak or absent. The aim of this article is to illustrate, using a case study, how policy reforms can help ensure policy on health-care technology is translated into everyday practice and how an integrated systems approach can enhance the operation of medical device management. Between 2011 and 2023, a plan to improve medical device management systems in the United Republic of Tanzania was developed and implemented through Swiss-Tanzanian cooperation within the Health Promotion and System Strengthening Project. The availability of biomedical engineers was increased through new training courses and the creation of permanent positions in government. Moreover, additional district and regional maintenance and repair workshops were built, and a National Centre for Calibration and Training was established to ensure the correct functioning of medical devices. The introduction of an electronic medical device management system provided health facilities and the health ministry with data on the operational status of medical devices and the need for repairs and spare parts. Every level of government was encouraged to allocate more human and financial resources to medical device management. Following this decade-long effort, the percentage of functioning equipment increased substantially, and costs were reduced by repairing rather than replacing equipment. The project also demonstrated the value of an integrated, system-strengthening approach that considered personnel, maintenance and repair facilities, documentation and management, and government policy and budgeting.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362694/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Wastewater surveillance to track influenza viruses.","authors":"Leshan Xiu, Kun Yin","doi":"10.2471/BLT.24.292285","DOIUrl":"10.2471/BLT.24.292285","url":null,"abstract":"","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-01Epub Date: 2024-07-04DOI: 10.2471/BLT.23.290330
Kartik Sharma, Sorcha Brophy, Michael Law, Veena Sriram
Objective: To assess the impact of the coronavirus disease 2019 (COVID-19) pandemic on protests by health workers.
Methods: We conducted an interrupted time series analysis of data from 159 countries for 2 years before and after the World Health Organization classified COVID-19 as a pandemic in March 2020, thus between 2018 and 2022. We produced models examining two main outcomes: (i) the total weekly number of health worker protests globally; and (ii) the number of countries with one or more health worker protests in a given week.
Findings: In total, there were 18 322 health worker protests in 133 countries between 2018 and 2022. The number of weekly health worker protests globally increased by 47% (30.1/63.5), an increase of 30.1 protests per week (95% confidence interval, CI: 11.7-48.6) at the onset of the COVID-19 pandemic. Furthermore, the number of countries experiencing such protests in a given week increased by 24% (5.7/24.1) following the declaration of the pandemic (an increase of 5.7 countries; 95% CI: 3.5-7.8).
Conclusion: The pandemic increased the overall level of health worker protests globally as well as the number of countries experiencing such protests. These protests highlight discontent in the health workforce. Given the ongoing global health workforce crisis, understanding and addressing the drivers of health worker discontent is important for global health policy and security.
{"title":"Health worker protests and the COVID-19 pandemic: an interrupted time-series analysis.","authors":"Kartik Sharma, Sorcha Brophy, Michael Law, Veena Sriram","doi":"10.2471/BLT.23.290330","DOIUrl":"10.2471/BLT.23.290330","url":null,"abstract":"<p><strong>Objective: </strong>To assess the impact of the coronavirus disease 2019 (COVID-19) pandemic on protests by health workers.</p><p><strong>Methods: </strong>We conducted an interrupted time series analysis of data from 159 countries for 2 years before and after the World Health Organization classified COVID-19 as a pandemic in March 2020, thus between 2018 and 2022. We produced models examining two main outcomes: (i) the total weekly number of health worker protests globally; and (ii) the number of countries with one or more health worker protests in a given week.</p><p><strong>Findings: </strong>In total, there were 18 322 health worker protests in 133 countries between 2018 and 2022. The number of weekly health worker protests globally increased by 47% (30.1/63.5), an increase of 30.1 protests per week (95% confidence interval, CI: 11.7-48.6) at the onset of the COVID-19 pandemic. Furthermore, the number of countries experiencing such protests in a given week increased by 24% (5.7/24.1) following the declaration of the pandemic (an increase of 5.7 countries; 95% CI: 3.5-7.8).</p><p><strong>Conclusion: </strong>The pandemic increased the overall level of health worker protests globally as well as the number of countries experiencing such protests. These protests highlight discontent in the health workforce. Given the ongoing global health workforce crisis, understanding and addressing the drivers of health worker discontent is important for global health policy and security.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362691/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As an increasing number of jurisdictions legalize assisted dying, attention is focusing on palliative care clinicians' role in service delivery. Gary Humphreys reports.
{"title":"Helping people to die.","authors":"","doi":"10.2471/BLT.24.020924","DOIUrl":"https://doi.org/10.2471/BLT.24.020924","url":null,"abstract":"<p><p>As an increasing number of jurisdictions legalize assisted dying, attention is focusing on palliative care clinicians' role in service delivery. Gary Humphreys reports.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362692/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tom A Yates, Samara Barnes, Martin Dedicoat, Onn Min Kon, Heinke Kunst, Marc Lipman, Kerry A Millington, Andrew J Nunn, Patrick Pj Phillips, Jessica L Potter, S Bertel Squire
Most phase III trials in drug-resistant tuberculosis have either been underpowered to quantify differences in microbiological endpoints or have taken up to a decade to complete. Composite primary endpoints, dominated by differences in treatment discontinuation and regimen changes, may mask important differences in treatment failure and relapse. Although new regimens for drug-resistant tuberculosis appear very effective, resistance to new drugs is emerging rapidly. There is a need for shorter, safer and more tolerable regimens, including those active against bedaquiline-resistant tuberculosis. Transitioning from multiple regimen A versus regimen B trials to a single large phase III platform trial would accelerate the acquisition of robust estimates of relative efficacy and safety. Further efficiencies could be achieved by adopting modern adaptive platform designs. Collaboration among trialists, affected community representatives, funders and regulators is essential for developing such a phase III platform trial for drug-resistant tuberculosis treatment regimens.
大多数耐药性结核病的 III 期试验要么没有足够的能力量化微生物终点的差异,要么需要长达十年的时间才能完成。以治疗中断和治疗方案改变差异为主的综合主要终点可能会掩盖治疗失败和复发方面的重要差异。尽管治疗耐药性结核病的新方案似乎非常有效,但对新药的耐药性正在迅速出现。我们需要更短、更安全、更耐受的治疗方案,包括那些对贝达喹啉耐药结核病有效的治疗方案。从多个治疗方案 A 与治疗方案 B 的对比试验过渡到单一的大型 III 期平台试验,将加快获得对相对疗效和安全性的可靠估计。采用现代适应性平台设计可进一步提高效率。试验人员、受影响社区代表、资助者和监管者之间的合作对于开发这种针对耐药结核病治疗方案的 III 期平台试验至关重要。
{"title":"Drug-resistant tuberculosis treatments, the case for a phase III platform trial.","authors":"Tom A Yates, Samara Barnes, Martin Dedicoat, Onn Min Kon, Heinke Kunst, Marc Lipman, Kerry A Millington, Andrew J Nunn, Patrick Pj Phillips, Jessica L Potter, S Bertel Squire","doi":"10.2471/BLT.23.290948","DOIUrl":"10.2471/BLT.23.290948","url":null,"abstract":"<p><p>Most phase III trials in drug-resistant tuberculosis have either been underpowered to quantify differences in microbiological endpoints or have taken up to a decade to complete. Composite primary endpoints, dominated by differences in treatment discontinuation and regimen changes, may mask important differences in treatment failure and relapse. Although new regimens for drug-resistant tuberculosis appear very effective, resistance to new drugs is emerging rapidly. There is a need for shorter, safer and more tolerable regimens, including those active against bedaquiline-resistant tuberculosis. Transitioning from multiple regimen A versus regimen B trials to a single large phase III platform trial would accelerate the acquisition of robust estimates of relative efficacy and safety. Further efficiencies could be achieved by adopting modern adaptive platform designs. Collaboration among trialists, affected community representatives, funders and regulators is essential for developing such a phase III platform trial for drug-resistant tuberculosis treatment regimens.</p>","PeriodicalId":9465,"journal":{"name":"Bulletin of the World Health Organization","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362690/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142117039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}