[1] Cent South Univ, Xiangya Hosp 3, Dept Obstet & Gynecol, 138 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China
[2] Cent South Univ, Xiangya Hosp 3, Dept Oncol, 138 Tongzipo Rd, Changsha 410013, Hunan, Peoples R China
[3] Cent South Univ, Xiangya Hosp 2, Dept Pharm, Changsha 410011, Peoples R China
[4] Univ South China, Changsha Cent Hosp, Dept Obstet & Gynecol, Changsha, Peoples R China