1. Department of Obstetrics and Gynecology West China Second University Hospital of Sichuan University and Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University)Ministry of Education Chengdu China
2. Department of Obstetrics Sichuan Provincial Hospital for Women and Children Chengdu China
3. State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan University Chengdu China
4. Imaging Center Sichuan Provincial Hospital for Women and Children Chengdu China
5. Department of Laboratory Medicine Sichuan Provincial Hospital for Women and Children Chengdu China
6. Pathology Department Sichuan Provincial Hospital for Women and Children Chengdu China