About the Authors

Christopher H. Chapman

chchap@med.umich.edu

Affiliation Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America

Mohammad Nazem-Zadeh

Affiliation Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America

Oliver E. Lee

Affiliation Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, United States of America

Matthew J. Schipper

Affiliation Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America

Christina I. Tsien

Affiliation Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America

Theodore S. Lawrence

Affiliation Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America

Yue Cao

Affiliations Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America, Department of Radiology, University of Michigan, Ann Arbor, Michigan, United States of America, Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Enrolled participants: CIT TSL. Designed software used in part of analysis: YC. Conceived and designed the experiments: CHC CIT TSL YC. Performed the experiments: CHC CIT TSL YC. Analyzed the data: CHC MN OEL MJS. Contributed reagents/materials/analysis tools: CIT TSL YC. Wrote the paper: CHC MN OEL CIT TSL YC.