1. Department of Paediatrics and Adolescent Medicine The University of Hong KongHong Kong Special Administrative Region Hong Kong China
2. Department of Obstetrics and Gynaecology Queen Elizabeth HospitalHong Kong Special Administrative Region Hong Kong China
3. Department of Paediatrics and Adolescent Medicine Hong Kong Children's HospitalHong Kong Special Administrative Region Hong Kong China
4. Department of Pathology Princess Margaret HospitalHong Kong Special Administrative Region Hong Kong China
5. Department of Paediatrics Kwong Wah HospitalHong Kong Special Administrative Region Hong Kong China
6. Department of Paediatrics and Adolescent Medicine United Christian HospitalHong Kong Special Administrative Region Hong Kong China
7. Department of Obstetrics and Gynaecology United Christian HospitalHong Kong Special Administrative Region Hong Kong China
8. Department of Obstetrics and Gynaecology Princess Margaret HospitalHong Kong Special Administrative Region Hong Kong China
9. Department of Obstetrics and Gyanecology Kwong Wah HospitalHong Kong Special Administrative Region Hong Kong China
10. Prenatal Diagnostic Laboratory Department of Obstetrics and Gynaecology Tsan Yuk HospitalHong Kong Special Administrative Region Hong Kong China
11. Department of Obstetrics and Gynaecology Queen Mary HospitalHong Kong Special Administrative Region Hong Kong China