About the Authors

Chuan Wang

Contributed equally to this work with: Chuan Wang, Minyan Chen

chuanwang6858@yahoo.cn

Affiliation Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China

Minyan Chen

Contributed equally to this work with: Chuan Wang, Minyan Chen

Affiliation Union Clinical School, Fujian Medical University, Fuzhou, China

Fangmeng Fu

Affiliation Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China

Meng Huang

Affiliation Fujian Center for Disease Control and Prevention, Fuzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CW. Performed the experiments: MC. Analyzed the data: MH. Contributed reagents/materials/analysis tools: FF MC. Wrote the paper: MC.