About the Authors
- Lin Li
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Contributed equally to this work with: Lin Li, Chengyan Li
Affiliation Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Guangzhou, China
- Chengyan Li
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Contributed equally to this work with: Lin Li, Chengyan Li
Affiliations Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Guangzhou, China, Department of Obstetric and Gynecology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, China
- Ping Pan
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Affiliation Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Guangzhou, China
- Xiaoli Chen
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Affiliation Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Guangzhou, China
- Xiaoke Wu
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Affiliation Department of Obstetrics and Gynecology, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
- Ernest Hung Yu Ng
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Affiliation Department of Obstetrics and Gynecology, University of Hong Kong, Hong Kong, China
- Dongzi Yang
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* E-mail: yangdz@mail.sysu.edu.cn
Affiliation Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Guangzhou, China
Competing Interests
The authors have declared that no competing interest exist.
Author Contributions
Conceived and designed the experiments: XW EHYN DY. Performed the experiments: LL CL. Analyzed the data: LL PP. Contributed reagents/materials/analysis tools: XC. Wrote the paper: LL.