1. Department of Neurology and Psychiatry, Gifu University School of Medicine, Gifu, Japan,
2. Department of Psychiatry and Psychotherapy, Wilhelms University Münster, Münster, Germany,
3. Department of Hygiene, Gifu University School of Medicine, Gifu,
4. Inuyama Hospital, Inuyama, and
5. Takai Clinic, Seki, Japan