1. Nagoya City University Graduate School of Medical Sciences; Department of Psychiatry & Cognitive-Behavioral Medicine; Kawasumi 1 Mizuho-cho, Mizuho-ku Nagoya Aichi Japan 467-8601
2. Toyokawa City Hospital; Department of Psychiatry; Koumei 1-19 Toyokawa Aichi Japan 442-8561
3. Keio University School of Medicine; Department of Psychiatry; Shinanomachi 35, Shinjuku-ku Tokyo Japan 160-8582
4. University of Verona; Department of Public Health and Community Medicine, Section of Psychiatry and Clinical Psychology; Policlinico "G.B.Rossi" Piazzale L.A. Scuro, 10 Verona Italy 37134
5. University of Bristol; Academic Unit of Psychiatry, School of Social and Community Medicine; Oakfield Hourse Oakfield Grove Bristol UK BS8 2BN
6. 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