Institution: | 1. Department of Radiology, Maternity and Child Care Hospital, Huzhou, China;2. Department of Endocrinology, Huzhou Central Hospital, Huzhou, China;3. Prenatal Diagnosis Center, Maternity and Child Care Hospital, Huzhou, China;4. Department of Children's Health, Maternity and Child Care Hospital, Huzhou, China;5. Department of Statistics, Maternity and Child Care Hospital, Huzhou, China;6. Department of Ultrasound, Maternity and Child Care Hospital, Huzhou, China |