About the Authors

Bo Zhang

Contributed equally to this work with: Bo Zhang, Han Zhao

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People’s Republic of China

Han Zhao

Contributed equally to this work with: Bo Zhang, Han Zhao

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People’s Republic of China

Tao Li

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China

Xuan Gao

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People’s Republic of China

Qin Gao

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China

Rong Tang

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China

Jiangtao Zhang

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China

Zi-Jiang Chen

chenzijiang@hotmail.com

Affiliations Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, Jinan, China, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People’s Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZJC HZ. Performed the experiments: BZ TL. Analyzed the data: BZ TL. Contributed reagents/materials/analysis tools: XG QG RT. Wrote the paper: BZ. Collected sample: JZ.