About the Authors

Qian-Rong Qi

Affiliation Center for Reproductive Medicine, Renmin Hospital of Wuhan University, Wuhan, P. R. China

Qing-Zhen Xie

qingzhenxie@hotmail.com

Affiliation Center for Reproductive Medicine, Renmin Hospital of Wuhan University, Wuhan, P. R. China

Xue-Li Liu

Affiliation Medical College of Wuhan University, Wuhan, P. R. China

Yun Zhou

Affiliation Center for Reproductive Medicine, Renmin Hospital of Wuhan University, Wuhan, P. R. China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: QZX QRQ. Performed the experiments: QRQ QZX XLL YZ. Analyzed the data: QRQ QZX XLL YZ. Contributed reagents/materials/analysis tools: QRQ QZX XLL YZ. Contributed to the writing of the manuscript: QRQ QZX.