1. Department of Health Economics and Health Services Research; University Medical Center Hamburg-Eppendorf; Hamburg Center for Health Economics (HCHE); Hamburg Germany
2. IFB Adiposity Diseases; University Medical Center Leipzig; Leipzig Germany
3. Mannheim Institute of Public Health, Social and Preventive Medicine; University Medicine Mannheim; Heidelberg University; Mannheim Germany
4. Department of Health Sciences and Centre for Health Economics; University of York; York UK
5. Department of Social Medicine, Occupational Medicine and Public Health; University of Leipzig; Leipzig Germany