1. Department of Diagnostic Pathology and Cytology Osaka International Cancer Institute Osaka Japan
2. Department of Pathology Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital Tokyo Japan
3. Department of Pathology Itabashi Central Clinical Laboratory Tokyo Japan
4. Department of Anatomic Pathology Tokyo Medical University Tokyo Japan
5. Department of Diagnostic Pathology Shizuoka Cancer Center Hospital Sunto Japan
6. Department of Dermatology Nara Medical University School of Medicine Kashihara Japan
7. Department of Dermatology and Allergology Juntendo Nerima Hospital Tokyo Japan
8. Department of Surgical Pathology, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
9. Department of Dermatology Kindai University Faculty of Medicine Osaka‐Sayama Japan