[Lan, Hua; Huang, Dongqing; Xiao, Songshu; Yuan, Jing; Liu, Chu; Guo, Xiaohui] Cent South Univ, Xiangya Hosp 3, Dept Gynecol & Obstet, Changsha, Peoples R China.
[Huang, Dongqing] Second Hosp Zhuzhou, Dept Gynecol, Zhuzhou, Peoples R China.
[Liu, Shuping] Univ South China, Dept Rehabil, Changsha Cent Hosp, Changsha, Peoples R China.
[Zhang, Peng] Univ South China, Grad Collaborat Training Base Affiliated Nanhua Ho, Hengyang Med Sch, Hengyang, Peoples R China.
[Cheng, Yan] Cent South Univ, Xiangya Hosp 2, Dept Pharm, Changsha, Peoples R China.