1. Winterthur Institute of Health Economics, Zurich University of Applied Sciences, Winterthur, Switzerland
2. Central Office for Statistics in Accident Insurance (SSUV), Lucerne, Switzerland
3. AO Foundation, Davos, Switzerland
4. Professor Emeritus, Institute for Social & Preventive Medicine, University of Zurich, Zurich, Switzerland
5. Professor Emeritus, University Hospital Basel, CMF Surgery, Basel, Switzerland
6. Head of Traumatology Department, Cantonal Hospital Aarau, Switzerland