1. University of Verona; Department of Public Health and Community Medicine, Section of Psychiatry; Policlinico "G.B.Rossi" Piazzale L.A. Scuro, 10 Verona Italy 37134
2. Ulm University; Department of Psychiatry ll; Ludwig-Heilmeyer-Str. 2 Guenzburg Germany D-89312
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
4. University of Verona; Department of Medicine and Public Health, Section of Psychiatry; Policlinico "G.B.Rossi" Pzz.le L.A. Scuro, 10 Verona Italy 37134
5. Toyokawa City Hospital; Department of Psychiatry; Koumei 1-19 Toyokawa Aichi Japan 442-8561