About the Authors

Xiong-Fei Pan

Affiliation Department of Epidemiology, West China School of Public Health, Sichuan University, Chengdu, China

Zhi-Mei Zhao

Affiliation Department of Epidemiology, West China School of Public Health, Sichuan University, Chengdu, China

Jing Sun

Affiliation Department of Pathology, Development and Regeneration Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, China

Feng Chen

Affiliation Department of Preventive Healthcare and Hospital Infection Control, Deyang People's Hospital, Deyang, China

Qing-Lian Wen

Affiliation Department of Oncology, the Affiliated Hospital of Luzhou Medical College, Luzhou, China

Kang Liu

Affiliation Institute of Tissue Engineering and Stem Cells, The Second Clinical Hospital of North Sichuan Medical College, Nanchong, China

Gui-Qin Song

Affiliation Department of Biology, North Sichuan Medical University, Nanchong, China

Jing-Jing Zhang

Affiliation School of Public Health, Kunming Medical University, Kunming, China

Ying Wen

Affiliation Department of Epidemiology, West China School of Public Health, Sichuan University, Chengdu, China

Chun-Jing Fu

Affiliation Department of Health Statistics and Information Management, School of Public Health and Management, Chongqing Medical University, Chongqing, China

Chun-Xia Yang

chunxia815@aliyun.com

Affiliation Department of Epidemiology, West China School of Public Health, Sichuan University, Chengdu, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XFP ZMZ CXY. Performed the experiments: XFP ZMZ JS FC QLW KL GQS JJZ YW CJF CXY. Analyzed the data: XFP ZMZ FC YW CJF CXY. Wrote the paper: XFP ZMZ CXY.