About the Authors

Xingyu Zhang

Affiliations Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand, Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China

Tao Zhang

Affiliation Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China

Jiao Pei

Affiliation Department of Science and Education, Sichuan Cancer Hospital & Institute, Sichuan, China

Yuanyuan Liu

Affiliation Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China

Xiaosong Li

lixiaosong1101@126.com

Affiliation Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China

Pau Medrano-Gracia

Affiliation Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XZ. Performed the experiments: XZ JP. Analyzed the data: XZ TZ. Contributed reagents/materials/analysis tools: XZ TZ YL XL. Wrote the paper: XZ TZ JP YL XL PMG.