1. Department of Obstetrics and Gynecology The Third Affiliated Hospital of Guangzhou Medical University Guangzhou 510150 China
2. Institute of Transfusion Medicine and Immunology Medical Faculty Mannheim University of Heidelberg 68167 Mannheim Germany
3. Fujian Provincial Key Laboratory of Reproductive Health Research Department of Obstetrics and Gynecology The First Affiliated Hospital of Xiamen University School of Medicine Xiamen University Xiamen 361005 China
4. Key Laboratory for Major Obstetric Diseases of Guangdong Province Guangzhou 510150 China
5. Guangdong‐Hong Kong‐Macao Greater Bay Area Higher Education Joint Laboratory of Maternal‐Fetal Medicine Guangzhou 510150 China
6. Guangdong Engineering and Technology Research Center of Maternal‐Fetal Medicine Guangzhou 510150 China