Author list:
Xue Yang1, Ling He1, Xiao Xiao1, Lei Yan1, Liye Shi1, Zhen Ren1, Haiyi Cai2, Chun Fu1
Department of Obstetrics and Gynecology, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
Department of Clinical Medicine, Harbin Medical University, Harbin, 150081, China.