1. Department of General Internal Medicine, Bern University Hospital University of Bern Bern Switzerland
2. Institute of Primary Health Care University of Bern Bern Switzerland
3. Veterans Affairs Center for Clinical Management Research Ann Arbor Michigan USA
4. Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor Michigan USA
5. Department of Internal Medicine University of Michigan Ann Arbor Michigan USA
6. Department of Medicine Indiana University School of Medicine Indianapolis Indiana USA
7. Richard L. Roudebush Veterans Affairs Medical Center Indianapolis Indiana USA