[1] Univ Lausanne Hosp, Psychiat Liaison Serv, CH-1011 Lausanne, Switzerland
[2] Univ Hosp Bern, Dept Med Oncol, CH-3010 Bern, Switzerland
[3] Serv Psychiat & Med Psychol, Lugano, Switzerland
[4] Geriatr Clin, St Gallen, Switzerland
[5] Univ Basel Hosp, Dept Internal Med, Psychosomat Div, CH-4031 Basel, Switzerland