1. Istituto di Ricovero e Cura a Carattere Scientifico, Centro San Giovanni di Dio, Fatebenefratelli; Psychiatric Unit; Brescia Italy
2. University of Verona; Department of Public Health and Community Medicine, Section of Psychiatry; Policlinico "G.B.Rossi" Pzz.le L.A. Scuro, 10 Verona Italy 37134
3. Kyoto University Graduate School of Medicine / School of Public Health; Department of Health Promotion and Human Behavior; Yoshida Konoe-cho, Sakyo-ku, Kyoto Japan 601-8501