1. Research CenterMaoming People's Hospital Guangdong China
2. Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center Guangzhou Medical University Guangzhou China
3. Department of Prenatal Diagnosis Maoming People’s Hospital Maoming Guangdong China
4. Department of Clinical Lab, Guangzhou Women and Children’s Medical Center Guangzhou Medical University Guangzhou China
5. Department of Blood Transfusion, Guangzhou Women and Children’s Medical Center Guangzhou Medical University Guangzhou China