1. Department of Medical Genetics; Liuzhou Maternal and Children Healthcare Hospital; Liuzhou China
2. Department of Pediatrics Surgery; Liuzhou Maternal and Children Healthcare Hospital; Liuzhou China
3. Deparment of Gynaecology and Obstetrics; Liuzhou Maternal and Children Healthcare Hospital; Liuzhou China
4. Department of the Perinatal Division; Liuzhou Maternal and Children Healthcare Hospital; Liuzhou China