About the Authors

Obiageli Crystal Oluka

Affiliation School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China

Shaofa Nie

sunyi_shyx@163.com (YS); sf_nie@mails.tjmu.edu.cn (SN)

Affiliation School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China

Yi Sun

sunyi_shyx@163.com (YS); sf_nie@mails.tjmu.edu.cn (SN)

Affiliation School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: OCO. Wrote the paper: OCO. Identified relevant studies: OCO YS. Conducted quality appraisal: OCO YS. Revised manuscript: YS OCO. Reviewed manuscript: SN. Verified reports at various stages of the review: SN. Approved final version for publication: SN.