论文数: 0 引用数: 0
h-index: 0
机构:
Sichuan Univ, Chinese Cochrane Ctr, Chinese Clin Trial Registry,W China Hosp, Chinese Evidence Based Med Ctr,INCLEN Resource &, Chengdu 610064, Peoples R China Chongqing Med Univ, Dept Obstet & Gynecol, Affiliated Hosp 2, Chongqing 400010, Sichuan, Peoples R China