[Lan, Hua; Xiao, Songshu; Li, Qiaofen; Zeng, XY; Yuan, Jing; Zeng, Xiangyang] Cent South Univ, Xiangya Hosp 3, Dept Obstet & Gynecol, 138 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China.
[Cao, K; Cao, Ke] Cent South Univ, Xiangya Hosp 3, Dept Oncol, 138 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China.
[Cheng, Yan] Cent South Univ, Xiangya Hosp 2, Dept Pharm, Changsha 410011, Peoples R China.
[Lan, Hua] Univ South China, Changsha Cent Hosp, Dept Obstet & Gynecol, Changsha, Peoples R China.