Open access journal of contraception最新文献

{"title":"Abortion history and its association with current use of modern contraceptive methods in Luanda, Angola.","authors":"Natalie Morris, Ndola Prata","doi":"10.2147/OAJC.S164736","DOIUrl":"10.2147/OAJC.S164736","url":null,"abstract":"<p><strong>Background: </strong>Women in sub-Saharan Africa often use abortion as a method of limiting their fertility and spacing births. However, it is not well understood whether having an abortion influences contraceptive behavior. The goal of this study was to examine associations between abortion history and use of a modern contraceptive method among women in Luanda, Angola.</p><p><strong>Materials and methods: </strong>We analyzed data on 1,176 women aged 15-49 years from a 2012 cross-sectional study conducted in Luanda, Angola, which aimed to obtain general information on sexual and reproductive health indicators. The outcome and exposure were based on participant reports of past induced abortions and current use of a modern method. We used a modified Poisson regression with robust standard errors to estimate the relative risks of using a modern contraceptive method, given history of induced abortion.</p><p><strong>Results: </strong>Among all respondents, 736 (62.6%) reported using a modern contraceptive method. The clear majority of the respondents (73.21%), regardless of abortion history, were using either no method, a traditional method, or condoms. Long-acting reversible contraceptive use was very low across all respondents (2.73%). The most common family planning method reported by women with a history of abortion was condoms (32.76%). Regression analysis demonstrated that women who had a history of abortion were 1.23 times more likely to use a modern contraceptive method as compared to those who never had an abortion (relative risk: 1.23; 95% CI: 1.10-1.36), after adjusting for potential confounders. Postregression estimations of predicted probabilities demonstrated that women with a history of abortion had an 80% probability of using a modern method (95% CI: 0.76-0.84), while those who never had an abortion had a 60% probability of using a modern method (95% CI: 0.59-0.61).</p><p><strong>Conclusion: </strong>History of induced abortion was associated with use of a modern contraceptive method in our study population. The most common contraceptive used by women with a history of induced abortion was condoms, indicating that despite adoption of a modern method, many women are still at risk for an unintended pregnancy. Further research is needed to understand the causal factors underlying women's postabortion contraceptive choices.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"45-55"},"PeriodicalIF":1.8,"publicationDate":"2018-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1a/cc/oajc-9-045.PMC6053171.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36338073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does courtesy bias affect how clients report on objective and subjective measures of family planning service quality? A comparison between facility- and home-based interviews.","authors":"Waqas Hameed, Muhammad Ishaque, Xaher Gul, Junaid-Ur-Rehman Siddiqui, Sharmeen Hussain, Wajahat Hussain, Aftab Ahmed, Asma Balal","doi":"10.2147/OAJC.S153443","DOIUrl":"10.2147/OAJC.S153443","url":null,"abstract":"<p><strong>Purpose: </strong>Despite a general understanding that exit interviews being conducted at service providers' facilities may influence clients' responses favorably to health professionals, there is very little evidence available that demonstrates the extent to which this problem exists. This study aimed at assessing and comparing clients' perceptions of the quality of family planning services and their satisfaction levels between facility- and home-based interviews.</p><p><strong>Methods: </strong>A cross-sectional survey was conducted among clients receiving family planning services across three service delivery channels - nongovernmental organization (NGO) clinics, social franchise (SF) centers, and outreach camps. The survey took place from December 2015 to January 2016 in 70 districts across all four provinces of Pakistan. A total of 2,807 clients were interviewed, of whom 1,404 clients were interviewed at health facilities after receiving services and 1,403 were interviewed at their homes within 3 days of method uptake.</p><p><strong>Results: </strong>Overall, we found no significant differences between the characteristics of study participants interviewed at health facilities or at home. The findings suggested that experiences reported in exit surveys at facilities were strongly biased positively. This was true for both experiential (service quality) and perception-based (satisfaction) questions in the context of SF centers, while at NGO clinics the interview location only affected clients' responses regarding service quality. However, in outreach settings, clients are more likely to share bad experiences in exit interviews than in home-based interviews on objectively asked questions (service quality).</p><p><strong>Conclusion: </strong>Our study indicates signs of courtesy bias and possibly the Hawthorne effect in exit interviews. Program implementers could opt for home-based interviews for women receiving services at NGO clinics or SF center, whereas exit interviews could be used in outreach settings.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"33-43"},"PeriodicalIF":0.0,"publicationDate":"2018-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d9/97/oajc-9-033.PMC5937485.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36098295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drospirenone-containing oral contraceptives and venous thromboembolism: an analysis of the FAERS database.","authors":"David Madigan,&nbsp;Jennifer Shin","doi":"10.2147/OAJC.S161737","DOIUrl":"https://doi.org/10.2147/OAJC.S161737","url":null,"abstract":"<p><strong>Introduction: </strong>Substantial evidence suggests that drospirenone-containing oral contraceptives may cause a higher risk of venous thrombotic events than earlier-generation oral contraceptives.</p><p><strong>Methods: </strong>To gain insight into recent real-world implications, we conducted an analysis using the US Food and Drug Administration's Adverse Event Reporting System.</p><p><strong>Results: </strong>Venous thrombotic events continue to be reported at a much higher rate with drospirenone-containing oral contraceptives than the general background. The disproportionality has been rising since 2010. The same behavior is not seen with levonorgestrel-containing oral contraceptives.</p><p><strong>Conclusion: </strong>Our results are consistent with decreased physician and patient awareness of risks associated with drospirenone-containing oral contraceptives.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"29-32"},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S161737","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36067185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Domestic violence: a hidden barrier to contraceptive use among women in Nigeria.","authors":"Ghose Bishwajit,&nbsp;Sanni Yaya","doi":"10.2147/OAJC.S154733","DOIUrl":"https://doi.org/10.2147/OAJC.S154733","url":null,"abstract":"<p><strong>Background: </strong>The nonuse of family planning methods remains a major public health concern in the low-and-middle-income countries, especially due to its impact on unwanted pregnancy, high rate of abortion, and transmission of sexually transmitted diseases. Various demographic and socioeconomic factors have been reported to be associated with the nonuse of family planning methods. In the present study, we aimed at assessing the influence of domestic violence (DV) on contraceptive use among ever married women in Nigeria.</p><p><strong>Methods: </strong>Data on 22,275 women aged between 15 and 49 years were collected from the most recent Nigeria Demographic and Health Survey conducted in 2013. The outcome variable was contraceptive utilization status, and the main exposure variable was DV, which was assessed by the self-reported experience of physical and psychological abuse. Complex survey method was employed to account for the multistage design of the survey. Data analyses were performed by using bivariate and multivariable techniques.</p><p><strong>Results: </strong>The mean age of the participants was 31.33±8.26. More than four fifths (84%) of the participants reported that they were not using any contraceptive methods at all. Lifetime prevalence of psychological and physical abuse was, respectively, 19.0% (95% CI =18.0-20.1) and 14.1% (95% CI =13.3-14.9). Women who reported physical abuse were 28% (adjusted odds ratio [AOR] =1.275; 95% CI =1.030-1.578), and those reported both physical and psychological abuse had 52% (AOR =1.520; 95% CI =1.132-2.042) higher odds of not using any contraception.</p><p><strong>Conclusion: </strong>The rate of contraception nonuse was considerably high and was found to be significantly associated with DV. Thus, the high prevalence of DV may compromise the effectiveness of the family planning programs in the long run. Evidence-based intervention strategies should be developed to protect the health and reproductive rights of the vulnerable women and to reduce DV by giving the issue a wider recognition in public policy making.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"21-28"},"PeriodicalIF":0.0,"publicationDate":"2018-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S154733","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35827672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A pilot study on the functional performance and acceptability of an innovative female condom (Wondaleaf^®) in Malaysia.","authors":"Rachel Sing-Kiat Ting,&nbsp;Ee-Lynn Wong,&nbsp;Jessie Koh-Sing Tnay","doi":"10.2147/OAJC.S152505","DOIUrl":"https://doi.org/10.2147/OAJC.S152505","url":null,"abstract":"<p><strong>Background: </strong>Female condom (FC) has been available for over 30 years, but it still lacks wide acceptability. To overcome misdirection and invagination occurring in FC and to provide a wider area of protection, Wondaleaf^® (WL), a new-generation adhesive FC, was recently invented. This pioneering study sought to assess the acceptability and functional performance of WL among Malaysian women.</p><p><strong>Methods: </strong>A mixed method survey was conducted in three cities of Malaysia, recruiting sexually active heterosexual women, aged 18-50, by snowball sampling method. Participants were provided with WL and initially surveyed to rate its performance in five coital usages over 2 months. After that, the participants underwent a second survey to rate their satisfaction and acceptability toward WL. Descriptive statistics on clinical failure rates were tabulated with correlational analysis performed to identify major variables contributing to WL's functional performance and acceptability.</p><p><strong>Results: </strong>Out of the 51 enrolled participants, 31 women completed the required surveys. WL's total clinical failure rate was 2.60% (out of 155 condom uses) with above-average ratings of functional performance. The ease of use significantly correlated with ratings of no slippage and no misdirection. The confidence in WL's safety features significantly correlated with a sense of empowerment and protection.</p><p><strong>Conclusion: </strong>WL has a relatively low risk of clinical failures and an overall favorable acceptability among Malaysian women. However, this study also showed that its future usage largely depends on partner acceptability. It may have the potential of complementing the existing barrier toward contraceptive use. Further studies are needed to understand the global acceptability of WL.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"11-20"},"PeriodicalIF":0.0,"publicationDate":"2018-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S152505","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35827670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contraceptive use and preferences of young married women in Kerala, India.","authors":"Jissa Vinoda Thulaseedharan","doi":"10.2147/OAJC.S152178","DOIUrl":"https://doi.org/10.2147/OAJC.S152178","url":null,"abstract":"<p><strong>Background: </strong>As in other states of India, female sterilization is the most widely used contraceptive method in Kerala where women have higher levels of education compared to most other states in India. This paper describes the use and preferences of contraceptive methods among young married women in Trivandrum district, Kerala, India.</p><p><strong>Subjects and methods: </strong>A community-based cross-sectional survey was carried out among 203 young married women (18-28 years) during January-March 2015 using multistage cluster sampling method. Statistical analysis was mainly descriptive, and chi-squared test was used to test the statistical significance of the relationship between sociodemographic factors and contraceptive use.</p><p><strong>Results: </strong>The average age at marriage for women was 21.3 years, and 23% of women had more than one child. Current use of any contraceptive methods was 58%. Female sterilization was preferred by 13% and it was significantly higher among women aged 25-28 years than in those aged 18-24 years (20% vs 2.6%, <i>p</i><0.001). Female sterilization was significantly lower among women with higher levels of education than in women with an education level of plus two or below (5.8% vs 19%, <i>p</i>=0.006). Women were mostly in favor of female sterilization (91%), and a significantly lower proportion of highly educated women preferred female sterilization than women with an education of 12 years or below (85% vs 95.7%, <i>p</i>=0.008).</p><p><strong>Conclusion: </strong>A considerable number of females in the age group 25-28-years opting for sterilization and the unique preference for female sterilization when the family size is complete show the predominant reliance on female sterilization among young women. Higher education delays sterilization in young women due to delayed marriage and childbirth. Women empowerment, proper information and assuring availability and accessibility to different methods can gradually change the dominant preference for female-oriented permanent method of contraception.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"9 ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S152178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35827669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A practical alternative to calculating unmet need for family planning.","authors":"Irit Sinai,&nbsp;Susan Igras,&nbsp;Rebecka Lundgren","doi":"10.2147/OAJC.S137705","DOIUrl":"https://doi.org/10.2147/OAJC.S137705","url":null,"abstract":"<p><p>The standard approach for measuring unmet need for family planning calculates actual, physiological unmet need and is useful for tracking changes at the population level. We propose to supplement it with an alternate approach that relies on individual perceptions and can improve program design and implementation. The proposed approach categorizes individuals by their perceived need for family planning: real met need (current users of a modern method), perceived met need (current users of a traditional method), real no need, perceived no need (those with a physiological need for family planning who perceive no need), and perceived unmet need (those who realize they have a need but do not use a method). We tested this approach using data from Mali (n=425) and Benin (n=1080). We found that traditional method use was significantly higher in Benin than in Mali, resulting in different perceptions of unmet need in the two countries. In Mali, perceived unmet need was much higher. In Benin, perceived unmet need was low because women believed (incorrectly) that they were protected from pregnancy. Perceived no need - women who believed that they could not become pregnant despite the fact that they were fecund and sexually active - was quite high in both countries. We posit that interventions that address perceptions of unmet need, in addition to physiological risk of pregnancy, will more likely be effective in changing behavior. The suggested approach for calculating unmet need supplements the standard calculations and is helpful for designing programs to better address women's and men's individual needs in diverse contexts.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"8 ","pages":"53-59"},"PeriodicalIF":0.0,"publicationDate":"2017-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S137705","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35783002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"\"Side effects affected my daily activities a lot\": a qualitative exploration of the impact of contraceptive side effects in Bangladesh.","authors":"Aparna Jain,&nbsp;Laura Reichenbach,&nbsp;Iqbal Ehsan,&nbsp;Ubaidur Rob","doi":"10.2147/OAJC.S140214","DOIUrl":"https://doi.org/10.2147/OAJC.S140214","url":null,"abstract":"<p><strong>Purpose: </strong>In a country like Bangladesh that has made great progress in contraceptive use with one of the lowest levels of fertility and highest levels of contraceptive use, understanding what factors influence women's decisions to discontinue a contraceptive method and not switch to a new method is critical in designing interventions and programs that will help enable Bangladesh to reach its FP2020 goals. Research on side effects has focused on physical manifestations like headaches, moodiness, abdominal pain, and menstrual irregularities. While physical effects alone may stop women from continuing a contraceptive method, less is known about how side effects influence women's daily activities and lives. The purpose of this study is to understand the ways that side effects affect Bangladeshi women's participation in different social settings.</p><p><strong>Methods: </strong>Thirty-five in-depth interviews with married women who recently discontinued or switched to a different contraceptive method were conducted in Sylhet and Khulna Divisions. Interviews explored reasons for discontinuation including experience of side effects and impact of side effects on women's lives.</p><p><strong>Results: </strong>Key themes emerged including that side effects are not only experienced physically but are barriers to women's participation in many aspects of their lives. The spheres of life that most commonly appeared to be influenced by side effects include religion, household, and sexual intimacy irrespective of method used or residence.</p><p><strong>Conclusion: </strong>Family planning providers need to be aware of these additional consequences associated with contraceptive side effects to provide tailored counseling that recognizes these issues and helps women to mitigate them. For Bangladesh to achieve its FP2020 goals, understanding the broader context in which family planning decisions are made vis-à-vis side effects is critical to design programs and interventions that meet all the needs of women beyond just their fertility intentions.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"8 ","pages":"45-52"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S140214","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35783001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hormonal contraception in women with polycystic ovary syndrome: choices, challenges, and noncontraceptive benefits.","authors":"Anderson Sanches de Melo,&nbsp;Rosana Maria Dos Reis,&nbsp;Rui Alberto Ferriani,&nbsp;Carolina Sales Vieira","doi":"10.2147/OAJC.S85543","DOIUrl":"https://doi.org/10.2147/OAJC.S85543","url":null,"abstract":"<p><p>Polycystic ovary syndrome (PCOS) is an endocrine disorder among women of reproductive age characterized by chronic anovulation and polycystic ovary morphology and/or hyperandrogenism. Management of clinical manifestations of PCOS, such as menstrual irregularities and hyperandrogenism symptoms, includes lifestyle changes and combined hormonal contraceptives (CHCs). CHCs contain estrogen that exerts antiandrogenic properties by triggering the hepatic synthesis of sex hormone-binding globulin that reduces the free testosterone levels. Moreover, the progestogen present in CHCs and in progestogen-only contraceptives suppresses luteinizing hormone secretion. In addition, some types of progestogens directly antagonize the effects of androgens on their receptor and also reduce the activity of the 5α reductase enzyme. However, PCOS is related to clinical and metabolic comorbidities that may limit the prescription of CHCs. Clinicians should be aware of risk factors, such as age, smoking, obesity, diabetes, systemic arterial hypertension, dyslipidemia, and a personal or family history, of a venous thromboembolic event or thrombophilia. This article reports a narrative review of the available evidence of the safety of hormonal contraceptives in women with PCOS. Considerations are made for the possible impact of hormonal contraceptives on endocrine, metabolic, and cardiovascular health.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"8 ","pages":"13-23"},"PeriodicalIF":0.0,"publicationDate":"2017-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S85543","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35781995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oral contraceptive and acute intestinal ischemia with mesenteric venous thrombosis: a case report.","authors":"Aude Béliard,&nbsp;Lucie Verreth,&nbsp;Pascale Grandjean","doi":"10.2147/OAJC.S124625","DOIUrl":"https://doi.org/10.2147/OAJC.S124625","url":null,"abstract":"<p><strong>Background: </strong>Venous thrombosis is a serious complication of combined contraceptive usage. However, mesenteric venous thrombosis and intestinal necrosis are infrequently seen in women using oral contraceptives, and in such cases diagnosis is often delayed.</p><p><strong>Case presentation: </strong>We report the case of a 38-year-old obese female patient who presented with acute abdominal pain. A bowel infection was first diagnosed and treated with antibiotics. Contrast-enhanced tomography of the abdomen revealed diffuse ischemia of the small intestine with superior mesenteric thrombosis. Laparotomy with segmental resection of both small and large bowel was performed. No predisposing factor of mesenteric venous thrombosis was demonstrated except association of the combined contraceptive with obesity.</p><p><strong>Conclusion: </strong>This report highlights the need for clinicians to suspect venous mesenteric thrombosis in women of reproductive age with acute abdominal pain and poor physical findings. Detailed personal history including prescriptions should help to quickly and accurately determine the problem.</p>","PeriodicalId":74348,"journal":{"name":"Open access journal of contraception","volume":"8 ","pages":"9-11"},"PeriodicalIF":0.0,"publicationDate":"2017-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2147/OAJC.S124625","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35781528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}