1. Department of Psychiatry , Centre Cantonal Autisme, Lausanne University Hospital , Lausanne , Switzerland
2. Institute of Social Sciences and NCCR LIVES , University of Lausanne , Lausanne , Switzerland
3. Institute of Social and Preventive Medicine (IUMSP) , Lausanne University Hospital , Lausanne 1010 , Switzerland
4. Institute of Social and Preventive Medicine (IUMSP) , Lausanne University Hospital , Route de la Corniche 10 , Lausanne 1010 , Switzerland , Phone: +41 213 147 375, Fax: +41 213 147 373