About the Authors

Jiong Li

Affiliation Aarhus University, Aarhus, Denmark

Jørn Olsen

Affiliation Aarhus University, Aarhus, Denmark

Mogens Vestergaard

Affiliation Research Unit for General Practice, Department of Public Health, Aarhus University, Aarhus, Denmark

Carsten Obel

Affiliation Aarhus University, Aarhus, Denmark

Jette Kolding Kristensen

Affiliation Aarhus University, Aarhus, Denmark

Jasveer Virk

jasvirk@ucla.edu

Affiliation Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JL MV CO JO. Analyzed the data: JV JL JKK. Wrote the paper: JV. Edited paper revisions: JL MV CO JO.