[1
]
International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai
Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original
Diseases, Shanghai, China; Chinese Maternal and Child Health Association, Beijing,
China.
[2
]
International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai
Jiao Tong University, Shanghai, China.
[3
]
Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
[4
]
International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai
Jiao Tong University, Shanghai, China; Affiliated Hospital of Yan'an University, Yan'an,
Shaanxi, China.
[5
]
Shaoxing Maternity and Child Health Care Hospital, Shaoxing, Zhejiang, China.
[6
]
Jiashan Maternity and Child Health Care Hospital, Jiaxing, Zhejiang, China.
[7
]
Dalian Maternal and Childcare Health Hospital, Dalian, Liaoning, China.
[8
]
Wenzhou People's Hospital, Wenzhou, Zhejiang, China.
[9
]
Hangzhou Women's Hospital, Hangzhou, Zhejiang, China.
[10
]
Fuzhou Maternal and Child Health Care Hospital, Fuzhou, Jiangxi, China.
[11
]
Songjiang Maternity and Child Health Hospital, Shanghai, China.
[12
]
Hunan Maternal and Child Health Care Hospital, Changsha, Hunan, China.
[13
]
Enze Obstetrics and Gynecology Hospital Affiliated to Taizhou Hospital of Zhejiang
Province, Taizhou, Zhejiang, China.
[14
]
Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China.
[15
]
Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
[16
]
Hainan Women and Children's Medical Center, Haikou, Hainan, China.
[17
]
First People's Hospital of Wuhu City, Wuhu, Anhui, China.
[18
]
People's Hospital of Changshan, Quzhou, Zhejiang, China.
[19
]
Shengzhou Maternity and Child Health Hospital, Shengzhou, Zhejiang, China.
[20
]
Wenchang Maternity and Child Health Care Hospital, Wenchang, Hainan, China.
[21
]
Huzhou Maternity and Child Health Care Hospital, Huzhou, Zhejiang, China.
[22
]
Karamay Central Hospital of XinJiang, Xinjiang, China.
[23
]
Ningbo Yinzhou People's Hospital, Ningbo, Zhejiang, China.
[24
]
Fuyang Women and Children's Hospital, Hangzhou, Zhejiang, China.
[25
]
Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China.
[26
]
Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education,
Hangzhou, Zhejiang, China.
[27
]
Ningbo University Affiliated Hospital of Medical School, Ningbo, Zhejiang, China.
[28
]
School of Public Health, Zhejiang University, Hangzhou, Zhejiang, China.
[29
]
Sir Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang,
China.
[30
]
Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Ontario, Canada.
[31
]
International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai
Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original
Diseases, Shanghai, China; Key Laboratory of Reproductive Genetics (Zhejiang University),
Ministry of Education, Hangzhou, Zhejiang, China; Chinese Maternal and Child Health
Association, Beijing, China. Electronic address: huanghefg@sjtu.edu.cn.