Affiliation: | [1]Center for Reproductive Medicine, the Third Affiliated Hospital of Guangzhou Medical University; Key Laboratory for Reproductive Medicine of Guangdong Province; Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou 510150, China; [2]Obstetrics and Gynecology Department, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China |