Affiliation: | 1. Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China;2. Central Research Lab, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China;3. Department of Pathology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China |