1. Medical Genetic Center Guangdong Women and Children Hospital Guangzhou Guangdong China
2. Maternal and Children Metabolic‐Genetic Key Laboratory Guangdong Women and Children Hospital Guangzhou Guangdong China
3. Thalassemia Diagnosis Center Guangdong Women and Children Hospital Guangzhou Guangdong China
4. Guangdong Birth Defect Prevention and Management Center Guangzhou Guangdong China
5. Prenatal Diagnosis Center Huizhou No.1 Maternal and Child Care Service Center Huizhou China