Yu Yan, Yang Zhi, Yu Haixia, Sun Ruliang, Zhu Yuanfang, Guo Fang
Department of Obstetrics, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, China.
Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Clinic for Gynecology, Charite-Universitatsmedizin Berlin, Corporate Member of Freie Universit Berlin, Humboldt-Universit zu Berlin, and Berlin Institute of Health, Berlin, Germany.
Eur J Obstet Gynecol Reprod Biol. 2020 Dec;255:263-265. doi: 10.1016/j.ejogrb.2020.10.010. Epub 2020 Oct 10.