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BACKGROUND Accumulating evidence suggests that low concentrations of serum 25(OH)D is coupled with increased risks of hypertension, obesity, and cardiovascular disease. However, this relationship has not been established in populations with very low levels of 25(OH)D. Therefore, the aim of our study was to clarify the associations between 25(OH)D and blood(More)
As a means to share knowledge, the community question answering (CQA) service provides users a chance to obtain or provide help by raising or answering questions. After a question is posted, the system must find an appropriate individual to answer this question. Several approaches have recently been proposed to find experts in CQA. In this paper, a new(More)
In this paper, we describe a web-based online question answering system which has been evaluated in TREC 2015 Live QA task. Automatic question answering is a classic widely learned technology. TREC have host 8 times QA tracks since 1999. However, the TREC results show that there is still a long way to solve the questions perfectly. LiveQA is kind of(More)
With the globally increasing prevalence, nonalcoholic fatty liver disease (NAFLD) becomes the predominant cause of chronic liver disease. A global look at the publication trends and the research hotspots of NAFLD are urgently needed to assess the situation of NAFLD research. The global scientific research in the Science Citation Index-Expanded covered(More)
AIM To identify and assess the research situation of top 100 cited articles in nonalcoholic fatty liver disease (NAFLD). METHODS The global scientific research articles in the Science Citation Index-Expanded relevant to NAFLD were retrieved and listed according to their citation times from the most to the least. The 100 most frequently cited original(More)
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