This study focuses on Sit and go poker tournaments, where a player with an advantage over her opponents needs to manage her bankroll properly. The study applies the Kelly criterion to games that have several outcomes, where the organizer charges a rake. The premise is that an advantage itself is not enough for a poker player to play at any stakes, because risking too large a fraction of the bankroll will result in a negative expected growth rate, even though the game itself is characterized by a positive expected value. Accordingly, this study uses a formula-based approach to address the challenge of identifying games where the player’s current bankroll has the highest expected growth rate, while also considering differences in the rake.
{"title":"Bankroll management in Sit and go poker tournaments","authors":"Björn Lantz","doi":"10.5750/JGBE.V10I2.1096","DOIUrl":"https://doi.org/10.5750/JGBE.V10I2.1096","url":null,"abstract":"This study focuses on Sit and go poker tournaments, where a player with an advantage over her opponents needs to manage her bankroll properly. The study applies the Kelly criterion to games that have several outcomes, where the organizer charges a rake. The premise is that an advantage itself is not enough for a poker player to play at any stakes, because risking too large a fraction of the bankroll will result in a negative expected growth rate, even though the game itself is characterized by a positive expected value. Accordingly, this study uses a formula-based approach to address the challenge of identifying games where the player’s current bankroll has the highest expected growth rate, while also considering differences in the rake.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127906826","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 public choice theory is applied in this study to explore the effects of the expected economic benefits and cost of voters in the process of casino legalization. It is shown that in contrast to most voting processes, the emotional inclination of voters and the related changes have an explicit role in determining the decision made on a ballot for casino legalization. A model is therefore proposed based on the existing literature (for e.g., Morton, 1991; Olson, 1965; Riker and Ordeshook, 1968) to show the interactions and decision making process of related policy makers, and beneficiary and anti-gaming groups. The arguments are elaborated and verified by using evidence from New Jersey and Taiwan, where state-wide referendums were adopted as part of the legalization process of casino gaming.
{"title":"A Public Choice Perspective on the Legalization of Casino Gaming","authors":"Miao He, Ricardo C. S. Siu","doi":"10.5750/JGBE.V10I2.1154","DOIUrl":"https://doi.org/10.5750/JGBE.V10I2.1154","url":null,"abstract":"The public choice theory is applied in this study to explore the effects of the expected economic benefits and cost of voters in the process of casino legalization. It is shown that in contrast to most voting processes, the emotional inclination of voters and the related changes have an explicit role in determining the decision made on a ballot for casino legalization. A model is therefore proposed based on the existing literature (for e.g., Morton, 1991; Olson, 1965; Riker and Ordeshook, 1968) to show the interactions and decision making process of related policy makers, and beneficiary and anti-gaming groups. The arguments are elaborated and verified by using evidence from New Jersey and Taiwan, where state-wide referendums were adopted as part of the legalization process of casino gaming.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115864489","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}
Formalised sports lottery is fast becoming a craze in Ghana, especially amongst the male populace. There is however no documented research on the demand for this product as well as its effects on the population and economy of Ghana as a whole. This study sought to investigate the factors that influence the demand for sports lottery in Ghana. Based on the expected utility hypothesis, a model was constructed using a binary logistic regression to analyse the characteristics that influence the demand for sports lottery in Ghana. Four hundred respondents were employed in this study where it was realized that 92% out of the about 96% males engaged in sports lottery in Ghana were within the age bracket of 21-40 years. Furthermore, 53.6% of those engaged in sports lottery were reported to be unemployed. Price, gender, age, employment status, monthly income and whether a person has won a bet before were discovered to be significant factors of the demand for sports lottery in Ghana. The study also realized that online lotteries were such as MyBet and Supabet were the most preferred to the offline lottery offered by the National Lottery Authority. Therefore the NLA must redesign their product to meet the demand preferences of the patrons.
{"title":"The Demand For Sports Lottery: Evidence from the City of Kumasi in Ghana","authors":"Akofa Adzo Aflakpui, E. F. Oteng-Abayie","doi":"10.5750/JGBE.V10I2.1173","DOIUrl":"https://doi.org/10.5750/JGBE.V10I2.1173","url":null,"abstract":"Formalised sports lottery is fast becoming a craze in Ghana, especially amongst the male populace. There is however no documented research on the demand for this product as well as its effects on the population and economy of Ghana as a whole. This study sought to investigate the factors that influence the demand for sports lottery in Ghana. Based on the expected utility hypothesis, a model was constructed using a binary logistic regression to analyse the characteristics that influence the demand for sports lottery in Ghana. Four hundred respondents were employed in this study where it was realized that 92% out of the about 96% males engaged in sports lottery in Ghana were within the age bracket of 21-40 years. Furthermore, 53.6% of those engaged in sports lottery were reported to be unemployed. Price, gender, age, employment status, monthly income and whether a person has won a bet before were discovered to be significant factors of the demand for sports lottery in Ghana. The study also realized that online lotteries were such as MyBet and Supabet were the most preferred to the offline lottery offered by the National Lottery Authority. Therefore the NLA must redesign their product to meet the demand preferences of the patrons.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114599559","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 examines the empirical importance of late money on market efficiency in horse race gambling. Our inquiry into the effect of late money on parimutuel pools uses data from Australian thoroughbred horse races over the entire 2006 racing season and includes every race at all thoroughbred tracks. This amounts to 14,854 races with an average of 10.37 starters per race. The evidence overwhelmingly supports the hypotheses that late money is smart money and late money improves market efficiency.
{"title":"Late Money and Betting Market Efficiency: Evidence from Australia","authors":"Marshall K. Gramm, C. N. McKinney, R. Parker","doi":"10.5750/JGBE.V10I2.1246","DOIUrl":"https://doi.org/10.5750/JGBE.V10I2.1246","url":null,"abstract":"This paper examines the empirical importance of late money on market efficiency in horse race gambling. Our inquiry into the effect of late money on parimutuel pools uses data from Australian thoroughbred horse races over the entire 2006 racing season and includes every race at all thoroughbred tracks. This amounts to 14,854 races with an average of 10.37 starters per race. The evidence overwhelmingly supports the hypotheses that late money is smart money and late money improves market efficiency.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125914550","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}
Kutosi Ayub Masaba, Johnson Sekakubo, A. Blaszczynski
Sports betting activities, particularly among youth, is increasing rapidly in Ugandan. The aim of this study was to determine the motivation for sports betting among Ugandan youth, and the social economic impact of this form of gambling. In a cross sectional quantitative research design, a questionnaire data was obtained from a sample of 181 youth attending betting houses in the Mbale district. Results indicated that that most youths were motivated by the desire to win money. Findings also revealed that Ugandan youth socially and economically benefited from sports betting. The study concludes by recommending that even if findings do not show the negative impacts of gambling on youth, there is need for stricter laws to avert any future negative implications.
{"title":"The university of sydneySocial-Economic Impacts of Sports Betting on Ugandan Youth. The case of Mbale Youth .","authors":"Kutosi Ayub Masaba, Johnson Sekakubo, A. Blaszczynski","doi":"10.5750/JGBE.V10I2.1205","DOIUrl":"https://doi.org/10.5750/JGBE.V10I2.1205","url":null,"abstract":"Sports betting activities, particularly among youth, is increasing rapidly in Ugandan. The aim of this study was to determine the motivation for sports betting among Ugandan youth, and the social economic impact of this form of gambling. In a cross sectional quantitative research design, a questionnaire data was obtained from a sample of 181 youth attending betting houses in the Mbale district. Results indicated that that most youths were motivated by the desire to win money. Findings also revealed that Ugandan youth socially and economically benefited from sports betting. The study concludes by recommending that even if findings do not show the negative impacts of gambling on youth, there is need for stricter laws to avert any future negative implications.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133563189","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 is an attempt to set out a betting strategy appropriate to events with several possible final outcomes which are a) unambiguously defined and b) likely to show fluctuations in the respective probabilities as the event unfolds. It is then shown that, by placing bets of appropriate magnitude and at appropriate times, such as to take advantage of changing odds , it is possible to secure a certain profit, generally in advance of the outcome becoming known, and irrespective of which of the possible outcomes finally materialises. Furthermore, the bettor should enjoy the reassurance of an improving Net Expected Value (NEV), as the event progresses. The procedure, which may be viewed as a multiple hedging one, is suited to in running betting on individual match events, as well as on protracted seasonal events (such as a league championship in football or other sport). The principal requirement is that there be a reasonable expectation of a large amount of alternation in the relative prospects of at least two contenders. The procedure is outlined in general terms and illustrated with reference to real life football matches and league competitions from the 2015/6 season. It is seen to be profitable under the specified conditions. Apparent advantages in betting on draws and on favourites are discussed.
{"title":"Is there such a thing as a safe bet","authors":"N. Zafiris","doi":"10.5750/JGBE.V10I1.1159","DOIUrl":"https://doi.org/10.5750/JGBE.V10I1.1159","url":null,"abstract":"This paper is an attempt to set out a betting strategy appropriate to events with several possible final outcomes which are a) unambiguously defined and b) likely to show fluctuations in the respective probabilities as the event unfolds. It is then shown that, by placing bets of appropriate magnitude and at appropriate times, such as to take advantage of changing odds , it is possible to secure a certain profit, generally in advance of the outcome becoming known, and irrespective of which of the possible outcomes finally materialises. Furthermore, the bettor should enjoy the reassurance of an improving Net Expected Value (NEV), as the event progresses. The procedure, which may be viewed as a multiple hedging one, is suited to in running betting on individual match events, as well as on protracted seasonal events (such as a league championship in football or other sport). The principal requirement is that there be a reasonable expectation of a large amount of alternation in the relative prospects of at least two contenders. The procedure is outlined in general terms and illustrated with reference to real life football matches and league competitions from the 2015/6 season. It is seen to be profitable under the specified conditions. Apparent advantages in betting on draws and on favourites are discussed.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115025943","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 casino industry is one of the most stringently regulated industries in the United States. State governments and their regulatory agencies control almost every aspect of the industry. However, U.S. casino regulation has not received much research attention. We examine the five most applicable economic theories of regulation. Since relevant empirical data of regulatory changes for casinos are sparse, we examine trends of the key variables to evaluate these theories. We categorize and examine trends in state and industry characteristics to determine if any one of these theories best explains the regulation of casinos. Based on our review of the state-level data, we conclude that the legalization and regulation of casinos best conform to a Leviathan theory of government in which the primary policy goal is to maximize government revenues.
{"title":"A Review Of Regulatory Theory And The U.S. Casino Industry","authors":"Peter T. Calcagno, Douglas Walker","doi":"10.5750/JGBE.V10I1.1059","DOIUrl":"https://doi.org/10.5750/JGBE.V10I1.1059","url":null,"abstract":"The casino industry is one of the most stringently regulated industries in the United States. State governments and their regulatory agencies control almost every aspect of the industry. However, U.S. casino regulation has not received much research attention. We examine the five most applicable economic theories of regulation. Since relevant empirical data of regulatory changes for casinos are sparse, we examine trends of the key variables to evaluate these theories. We categorize and examine trends in state and industry characteristics to determine if any one of these theories best explains the regulation of casinos. Based on our review of the state-level data, we conclude that the legalization and regulation of casinos best conform to a Leviathan theory of government in which the primary policy goal is to maximize government revenues.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122360470","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}
From May 17, 2002 to December 30, 2014, there were 1,318 Mega Millions drawings and 153 were winning drawings. In 148 out of 153 winning drawings, there was no winner(s) in the first drawing and the jackpot prize was rolled over and added to the next drawing. Since the Mega Millions does not have a rollover limit, this process continues until there is an eventual winning ticket. If there are no winners over a month, the jackpot prize will approach $100 million. As the jackpot prize approaches $100 million, significantly larger additional cash flows into the lottery. Based on the analysis of 29 large Mega Millions winning drawings (jackpot prize ≥ $100 million), we report the following findings. First, significantly larger additional money flows into the lottery as the jackpot prize gets larger, and over 90% of the additional cash inflow is spent on Mega Millions tickets. Second, for the entire sample there does not appear to be reallocating of funds taking place within lottery games. However, when total sales declines or changes in Mega Millions sales is greater than changes in total lottery sales, a small amount of money (less than $0.20 per capita) being transferred from Instant Games to Mega Millions appears to take place. Third, zip-codes with a higher average family income or residents with more years of schooling experience a significantly higher demand for Mega Millions tickets. In addition, as the percentage of white or Asian-Americans in an area increase, the demand for Mega Millions increases by a significant amount. Lastly, as the jackpot prize gets larger, lottery players from all income levels spend more money on Mega Millions, but over 80% of the additional money comes from consumers belonging to the upper-middle or higher income brackets.
{"title":"Analysis of Large Mega Millions Rollovers","authors":"S. Lee, Ki C. Han, David Y. Suk, Hyunmo Sung","doi":"10.5750/jgbe.v10i1.1170","DOIUrl":"https://doi.org/10.5750/jgbe.v10i1.1170","url":null,"abstract":"From May 17, 2002 to December 30, 2014, there were 1,318 Mega Millions drawings and 153 were winning drawings. In 148 out of 153 winning drawings, there was no winner(s) in the first drawing and the jackpot prize was rolled over and added to the next drawing. Since the Mega Millions does not have a rollover limit, this process continues until there is an eventual winning ticket. If there are no winners over a month, the jackpot prize will approach $100 million. As the jackpot prize approaches $100 million, significantly larger additional cash flows into the lottery. Based on the analysis of 29 large Mega Millions winning drawings (jackpot prize ≥ $100 million), we report the following findings. First, significantly larger additional money flows into the lottery as the jackpot prize gets larger, and over 90% of the additional cash inflow is spent on Mega Millions tickets. Second, for the entire sample there does not appear to be reallocating of funds taking place within lottery games. However, when total sales declines or changes in Mega Millions sales is greater than changes in total lottery sales, a small amount of money (less than $0.20 per capita) being transferred from Instant Games to Mega Millions appears to take place. Third, zip-codes with a higher average family income or residents with more years of schooling experience a significantly higher demand for Mega Millions tickets. In addition, as the percentage of white or Asian-Americans in an area increase, the demand for Mega Millions increases by a significant amount. Lastly, as the jackpot prize gets larger, lottery players from all income levels spend more money on Mega Millions, but over 80% of the additional money comes from consumers belonging to the upper-middle or higher income brackets.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129009048","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 successful liberalization of the gaming industry in Macau has incited other Asian destinations to reconsider their position on gambling. For the last ten years, new gaming destinations have emerged in Asia. China has still not yet legalized this industry, but since last year, new policies authorizing sport lotteries have been introduced in the province of Hainan. The objective of this measure is to diversify tourism in that province and make Hainan more attractive for visitors. In case of success, this policy could be expanded to other gaming activities and casinos would be legalized in Hainan, as advocated by the provincial government; but legalizing casinos in Hainan may face several obstacles. This paper aims at showing that the success of Asian casino destinations mainly results from China’s ban on gambling. This study will focus on the history of gambling in China, and the reasons for the continuation of gambling prohibition in China. The author will argue that the ideological opposition plays a similar role as religious movements in Western countries. The paper will be illustrated by a literature review analyzing previous examples in other parts of the world.
{"title":"Casinos In Asia: Legalizing Gambling In The Chinese Province Of Hainan, The Ideological Obstacle","authors":"Sébastien Goulard","doi":"10.5750/JGBE.V10I1.826","DOIUrl":"https://doi.org/10.5750/JGBE.V10I1.826","url":null,"abstract":"The successful liberalization of the gaming industry in Macau has incited other Asian destinations to reconsider their position on gambling. For the last ten years, new gaming destinations have emerged in Asia. China has still not yet legalized this industry, but since last year, new policies authorizing sport lotteries have been introduced in the province of Hainan. The objective of this measure is to diversify tourism in that province and make Hainan more attractive for visitors. In case of success, this policy could be expanded to other gaming activities and casinos would be legalized in Hainan, as advocated by the provincial government; but legalizing casinos in Hainan may face several obstacles. This paper aims at showing that the success of Asian casino destinations mainly results from China’s ban on gambling. This study will focus on the history of gambling in China, and the reasons for the continuation of gambling prohibition in China. The author will argue that the ideological opposition plays a similar role as religious movements in Western countries. The paper will be illustrated by a literature review analyzing previous examples in other parts of the world.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031450","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 study focuses on bankroll management, defined as the process of determining the right fraction of the bankroll one should put at risk in a particular advantageous situation, examined in a poker tournament context. The aim of the study is to conduct a theoretical analysis of bankroll management based on the Kelly criterion in a typical large poker tournament, using the actual World Series of Poker Main Event payout table as an example of such tournaments. A main conclusion of this paper is that a long-term profitable poker player’s expected return on investment in tournaments (i.e., the level of advantage) does not provide sufficient information to obtain an optimal bankroll management policy for the player. The level of advantage is obviously an important factor, but the player’s strategic approach to the game, that is, if the player primarily tries to avoid finishing the tournament without a payout or if the player primarily tries to finish in the very top of the ranking, is also very important to consider.
{"title":"Bankroll Management in Large Poker Tournaments","authors":"Björn Lantz","doi":"10.5750/JGBE.V9I3.1074","DOIUrl":"https://doi.org/10.5750/JGBE.V9I3.1074","url":null,"abstract":"This study focuses on bankroll management, defined as the process of determining the right fraction of the bankroll one should put at risk in a particular advantageous situation, examined in a poker tournament context. The aim of the study is to conduct a theoretical analysis of bankroll management based on the Kelly criterion in a typical large poker tournament, using the actual World Series of Poker Main Event payout table as an example of such tournaments. A main conclusion of this paper is that a long-term profitable poker player’s expected return on investment in tournaments (i.e., the level of advantage) does not provide sufficient information to obtain an optimal bankroll management policy for the player. The level of advantage is obviously an important factor, but the player’s strategic approach to the game, that is, if the player primarily tries to avoid finishing the tournament without a payout or if the player primarily tries to finish in the very top of the ranking, is also very important to consider.","PeriodicalId":109210,"journal":{"name":"The Journal of Gambling Business and Economics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123150390","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}
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