About the Authors

Lars Holmberg


Affiliations Regional Cancer Center Uppsala Örebro, Uppsala University Hospital, Uppsala, Sweden, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden, Division of Cancer Studies, School of Medicine, King's College London, London, United Kingdom

Andrew Vickers

Affiliation Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York, United States of America

Competing Interests

The authors declare no competing interests.

Author Contributions

Wrote the first draft of the manuscript: LH. Contributed to the writing of the manuscript: LH AV. ICMJE criteria for authorship read and met: LH AV.