[1] Chongqing Med Univ, Affiliated Hosp 1, Dept Gynecol, Chongqing, Peoples R China
[2] Chongqing Med Univ, Affiliated Hosp 1, Dept Psychiat, Chongqing, Peoples R China
[3] Tongnan Dist Peoples Hosp Chongqing, Emergency Dept, Chongqing, Peoples R China
[4] Wansheng Dist Peoples Hosp Chongqing, Dept Obstet, Chongqing, Peoples R China
[5] Chongqing Med Univ, Affiliated Hosp 1, Dept Urol, Chongqing, Peoples R China