1. Department of Pathology, Kobe University School of Medicine, Kobe
2. Department of Pathology, Yamaguchi University School of Medicine, Ube
3. Department of Public Health, Kobe University School of Medicine, Kobe
4. Department of Internal Medicine, Kobe University School of Medicine, Kobe
5. Department of Internal Medicine, Osaka Prefectural Center for Adult Diseases, Osaka
6. Department of Internal Medicine, Kobe Kyoto Hospital, Kobe
7. Osaka Medical College, Takatsuki