About the Authors

Xiangru Chen

Contributed equally to this work with: Xiangru Chen, Jie Chen

Affiliation Faculty of Nursing, Nanjing Drum Tower Hospital, Nanjing Medical University, Jiangsu, China

Jie Chen

Contributed equally to this work with: Xiangru Chen, Jie Chen

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

Jian Wen

Affiliation Department of Obstetrics and Gynecology, Zhenjiang Fourth People's Hospital, Jiangsu, China

Chenyu Xu

Affiliation Department of Obstetrics and Gynecology, Zhenjiang Fourth People's Hospital, Jiangsu, China

Shu Zhang

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

Yi-Hua Zhou

yzh20061111@yahoo.com (Y-HZ); dtylhu@126.com (YH)

Affiliations Departments of Experimental 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 (Y-HZ); dtylhu@126.com (YH)

Affiliations Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing Medical University, 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: Y-HZ YH. Performed the experiments: JW CX XC JC. Analyzed the data: XC JC JW CX SZ Y-HZ YH. Contributed reagents/materials/analysis tools: JW CX SZ XC JC. Wrote the paper: XC JC Y-HZ YH.