About the Authors

Jie Wei

Affiliations Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan Province, China, Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China

Guang-hua Lei

Affiliation Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China

Lei Fu

Affiliation Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan Province, China

Chao Zeng

Affiliation Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China

Tuo Yang

Affiliation Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan Province, China

Shi-fang Peng

sfp1988@hotmail.com

Affiliations Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan Province, China, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, Hunan Province, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JW GL SP. Performed the experiments: JW LF CZ TY. Analyzed the data: JW LF. Contributed reagents/materials/analysis tools: JW CZ SP. Wrote the paper: JW SP. Revised the manuscript: GL SP.