About the Authors
- Matthias Bopp, Julia Braun, Felix Gutzwiller
- Institute of Social and Preventive Medicine (ISPM), University of Zurich, Zurich, Switzerland
The authors have declared that no competing interests exist.
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.