Excluded Studies. Peng-Peng Jin Li-Li Sun Bo-Jun Ding Na Qin Bin Zhou Feng Xia Li Li Li-Juan Liu Xue-Dong Liu Gang Zhao Wen Wang Yan-Chun Deng Shuang-Xing Hou 10.1371/journal.pone.0131374.t002 https://plos.figshare.com/articles/dataset/_Excluded_Studies_/1492921 <p><sup>a</sup> Insufficient HLA typing was considered for any analysis that was not able to identify the HLA allele to at least two digits.</p><p><sup>b</sup> Studies with insufficient genetic data included only 2–3 GBS cases, were usually family groupings, and did not have a case-control design.</p><p>Excluded Studies.</p> 2015-07-23 03:24:59 sample sizes systematic review 1353 controls outcome measure Asian Patients or Human Leukocyte Antigen DQB 1 Caucasian populations leukocyte antigen DQB 1 ci GBS risk odds ratios 780 cases subgroup analyses Association Studies polymorphism