1Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
2National Health Commission of the People’s Republic of China, Beijing 100044, China
3Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
4Administration Office, Chongqing Health Center for Women and Children, Chongqing 401120, China
5Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China
6Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100083, China
7Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
8Department of Obstetrics and Gynecology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
9National Center for Women and Children's Health, Chinese Center for Disease Control and Prevention, Beijing 100081, China
∗Corresponding authors: Ai-Ling Wang, National Center for Women and Children's Health, Chinese Center for Disease Control and Prevention, Beijing 100081, China. Email:[email protected]; Huixia Yang, Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing Key Laboratory of Maternal Fetal Medicine of Gestational Diabetes Mellitus, Beijing 100034, China. Email:[email protected]; Li Song, National Health Commission of the People’s Republic of China, Beijing 100044, China. Email:[email protected]
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