About the Authors

Zhiqun Wang

Contributed equally to this work with: Zhiqun Wang, Shu Zhang

Affiliation Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China

Shu Zhang

Contributed equally to this work with: Zhiqun Wang, Shu Zhang

Affiliation Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China

Chao Luo

Affiliation Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China

Qianzhen Wu

Affiliation Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China

Qilan Liu

Affiliation Jiangsu Family Planning Institute, Nanjing, Jiangsu, China

Yi-Hua Zhou

yzh20061111@yahoo.com (YHZ); dtylhu@126.com (YH)

Affiliations Departments of Laboratory Medicine and Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China, Jiangsu Key Laboratory for Molecular Medicine, Nanjing University Medical School, Jiangsu, China

Yali Hu

yzh20061111@yahoo.com (YHZ); dtylhu@126.com (YH)

Affiliations Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China, Jiangsu Key Laboratory for Molecular Medicine, Nanjing University Medical School, Jiangsu, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YHZ YH. Performed the experiments: ZW SZ CL QW QL. Analyzed the data: ZW SZ CL QW QL YHZ YH. Wrote the paper: ZW SZ YHZ YH.