1. Department of Medicine, Neuchâtel Hospital Network , 2000 Neuchâtel, Switzerland
2. Institute of Psychology, University of Bern , 3012 Bern, Switzerland
3. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern , 3010 Bern, Switzerland
4. Division of General Internal Medicine , CHUV, , 1011 Lausanne, Switzerland
5. University of Lausanne , CHUV, , 1011 Lausanne, Switzerland
6. Institute of Primary Health Care (BIHAM), University of Bern , 3012 Bern, Switzerland