About the Authors

Gene Bukhman

gbukhman@partners.org

Affiliation Division of Social Medicine and Health Inequalities, Brigham and Women's Hospital, Boston, Massachusetts, United States of America

John Ziegler

Affiliation Cancer Risk Program, University of California San Francisco, San Francisco, California, United States of America

Eldryd Parry

Affiliation Clinical Research Unit, London School of Hygiene & Tropical Medicine, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GB JZ EP. Analyzed the data: GB JZ EP. Wrote the paper: GB JZ EP. Initiated this review and wrote the first draft: GB Contributed substantially to the conception and revision of the paper: JZ EP.