Key Laboratory of Endocrinology of National Health and Family Planning Commission;
Department of Endocrinology;
Peking Union Medical College Hospital;
Chinese Academy of Medical Science and Peking Union Medical College;
Graduate School;
Hebei North University;
Department of Epidemiology and Biostatistics;
Institute of Basic Medical Sciences Chinese Academy of Medical Sciences;
School of Basic Medicine Peking Union Medical College;
National Office for Maternal and Child Health Surveillance of China;
Department of Obstetrics;
Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University);
Ministry of Education;
West China Second University Hospital;
Sichuan University;
Institute of Clinical Medical Sciences;
China-Japan Friendship Hospital;
Institute for Infection;
Guizhou Provincial Center for Disease Control and Prevention;