About the Authors
- Yun-Ping Zhang
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* E-mail: ypzhang7090@yahoo.com.cn
Affiliation Department of Gynecology and Obstetrics, Maternal and Child Health Hospital, Haidian District, Beijing, China
- Xiao-Hong Liu
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Affiliation Department of Gynecology and Obstetrics, Maternal and Child Health Hospital, Haidian District, Beijing, China
- Su-Hong Gao
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Affiliation Department of Gynecology and Obstetrics, Maternal and Child Health Hospital, Haidian District, Beijing, China
- Jia-Mei Wang
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Affiliation Department of Gynecology and Obstetrics, Maternal and Child Health Hospital, Haidian District, Beijing, China
- Yue-Shan Gu
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Affiliation Department of Breast Surgery, Maternal and Child Health Hospital, Tongzhou District, Beijing, China
- Jiu-Yue Zhang
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Affiliation Department of Anesthesiology, Maternal and Child Health Hospital, Shunyi District, Beijing, China
- Xia Zhou
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Affiliation Department of Pediatrics, Maternal and Child Health Hospital, Changping District, Beijing, China
- Qing-Xia Li
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Affiliation Department of Gynecology and Obstetrics, Maternal and Child Health Hospital, Daxing District, Beijing, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: YPZ XHL YSG JYZ XZ QXL. Performed the experiments: XHL SHG XZ QXL. Analyzed the data: YPZ XHL SHG JMW. Contributed reagents/materials/analysis tools: YPZ YSG JYZ. Wrote the paper: SHG JMW XHL YPZ.