Affiliation: | 1. Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China;2. Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China;3. Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China;4. Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China The Chinese University of Hong Kong-Baylor College of Medicine Joint Center for Medical Genetics, Hong Kong, China;5. Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China |