About the Authors

Matthias Bopp

bopp@ifspm.uzh.ch

Affiliation Institute of Social and Preventive Medicine (ISPM), University of Zurich, Zurich, Switzerland

Julia Braun

Affiliation Institute of Social and Preventive Medicine (ISPM), University of Zurich, Zurich, Switzerland

Felix Gutzwiller

Affiliation Institute of Social and Preventive Medicine (ISPM), University of Zurich, Zurich, Switzerland

David Faeh
for the Swiss National Cohort Study Group

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MB DF. Performed the experiments: MB DF JB. Analyzed the data: MB JB. Wrote the paper: MB DF JB. Conceived and directed the NRP 1A study: FG. Contributed important intellectual content and gave final approval of the version to be published: FG.