About the Authors

Davaasambuu Ganmaa

gdavaasa@hsph.harvard.edu

Affiliations Channing Laboratory, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Health Sciences University of Mongolia, Ulaanbaatar, Mongolia

Jennifer J. Stuart

Affiliations Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Connors Center for Women's Health and Gender Biology, Brigham and Women's Hospital, Boston, MA, United States of America

Nyamjav Sumberzul

Affiliation Health Sciences University of Mongolia, Ulaanbaatar, Mongolia

Boldbaatar Ninjin

Affiliation Health Sciences University of Mongolia, Ulaanbaatar, Mongolia

Edward Giovannucci

Affiliations Channing Laboratory, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America

Ken Kleinman

Affiliation Population Medicine, Harvard Pilgrim Health Care Institute and Harvard Medical School, Boston, MA, United States of America

Michael F. Holick

Affiliation Endocrine, Diabetes and Nutrition Section, Department of Medicine, Boston University Medical Center, Boston, MA, United States of America

Walter C. Willett

Affiliations Channing Laboratory, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America, Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America

Lindsay A. Frazier

Affiliations Channing Laboratory, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Department of Pediatric Oncology, Dana Farber Cancer Institute, Boston, MA, United States of America

Janet W. Rich-Edwards

Affiliations Channing Laboratory, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America, Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America, Connors Center for Women's Health and Gender Biology, Brigham and Women's Hospital, Boston, MA, United States of America

Competing Interests

The authors have declared that no competing interests exist

Author Contributions

Conceptualization: DG, JWR, LAF. Formal analysis: JJS, KK. Funding acquisition: DG, JWR. Investigation: DG, NS, BN. Methodology: DG, JWR, LAF. Validation: DG, JJS, NS, BN, EG, KK, MFH, WCW, LAF, JWR. Writing – original draft: DG. Writing – review & editing: DG, JJS, NS, BN, EG, KK, MFH, WCW, LAF, JWR.