About the Authors

Rong Fu

Affiliation Department of Biostatistics, Public Health College, Harbin Medical University, Harbin, PR China

Yupeng Wang

Affiliation Department of Biostatistics, Public Health College, Harbin Medical University, Harbin, PR China

Han Bao

Affiliation Department of Biostatistics, Public Health College, Harbin Medical University, Harbin, PR China

Zhiqiang Wang

Affiliation School of Medicine, the University of Queensland, Royal Brisbane & Women’s Hospital, Herston, Australia

Yongquan Li

Affiliation Graduate school, Harbin Medical University, Harbin, PR China

Shaofei Su

Affiliation Department of Biostatistics, Public Health College, Harbin Medical University, Harbin, PR China

Meina Liu

liumeina369@163.com

Affiliation Department of Biostatistics, Public Health College, Harbin Medical University, Harbin, PR China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RF YL ML. Analyzed the data: RF YW HB. Wrote the paper: RF SS ML. Revising it critically for important intellectual content: RF ZW. Final approval of the version to be published: YW ZW.