1. Prenatal Diagnosis Centre, The University of Hong Kong—Shenzhen Hospital, Shenzhen 518053, China
2. Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong 999077, China
3. Department of Ultrasound, The University of Hong Kong—Shenzhen Hospital, Shenzhen 518053, China
4. Department of Endocrinology, The University of Hong Kong—Shenzhen Hospital, Shenzhen 518053, China
5. Neonatal Intensive Care Unit, The University of Hong Kong—Shenzhen Hospital, Shenzhen 518053, China
6. Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Hong Kong 999077, China