About the Authors

Emil Victor Gruber

Affiliation Institute of Health Economics and Health Care Management, Helmholtz Zentrum München, Neuherberg, Germany

Stephanie Stock

Affiliation Institute of Health Economics and Clinical Epidemiology, University of Cologne, Cologne, Germany

Björn Stollenwerk

bjoern.stollenwerk@helmholtz-muenchen.de

Affiliation Institute of Health Economics and Health Care Management, Helmholtz Zentrum München, Neuherberg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: EG BS. Contributed reagents/materials/analysis tools: SS. Wrote the paper: BS EG SS.