About the Authors

Hongjuan Zhao

Affiliation Department of Urology, Stanford University, Stanford, California, United States of America

Zongming Ma

Affiliation Department of Statistics, Stanford University, Stanford, California, United States of America

Robert Tibshirani

Affiliation Department of Statistics, Stanford University, Stanford, California, United States of America

John P. T. Higgins

Affiliation Department of Pathology, Stanford University, Stanford, California, United States of America

Börje Ljungberg

Affiliation Department of Urology, Umeå University, Umeå, Sweden

James D. Brooks

jdbrooks@stanford.edu

Affiliation Department of Urology, Stanford University, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BL JB. Performed the experiments: HZ. Analyzed the data: HZ ZM RT JH JB. Contributed reagents/materials/analysis tools: BL. Wrote the paper: HZ ZM JB.