About the Authors

Chen Li

Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

Affiliation Department of Health Statistics, School of Preventive Medicine, Fourth Military Medical University, Xi’an, Shaanxi, China

Haitao Pan

Roles Conceptualization, Formal analysis, Investigation, Methodology, Software, Validation, Visualization, Writing – original draft, Writing – review & editing

haitao.pan@stjude.org

Affiliation Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America

Competing Interests

The authors have declared that no competing interests exist.