About the Authors

Daniel Pach

Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany

Benno Brinkhaus

Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany

Stephanie Roll

Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany

Karl Wegscheider

Affiliation Department of Medical Biometry and Epidemiology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany

Katja Icke

Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany

Stefan N. Willich

Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany

Claudia M. Witt

claudia.witt@charite.de

Affiliations Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center Berlin, Berlin, Germany, Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CMW BB SNW. Performed the experiments: CMW BB DP. Analyzed the data: KW SR KI DP CMW. Wrote the paper: DP BB SR KW KI SNW CMW.