1. Department of Dermatology Osaka City University Graduate School of Medicine Osaka Osaka Japan
2. Department of Dermatology Osaka City General Hospital Osaka Japan
3. Department of Dermatology Kashibaseiki Hospital Kashiba Japan
4. Department of Diagnostic Pathology Osaka City University Graduate School of Medicine Osaka Japan
5. Department of Pathology Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital Tokyo Japan
6. Department of Pathology Itabashi Central Clinical Laboratory Tokyo Japan
7. Department of Diagnostic Pathology Shizuoka Cancer Center Hospital Sunto Japan
8. Department of Diagnostic Pathology and Cytology Osaka International Cancer Institute Osaka Japan
9. Department of Dermatology Hyogo Cancer Center Akashi Japan