1. Division of Dermatology and Dermatopathology Nippon Medical School Musashi Kosugi‐Hospital Kawasaki Japan
2. Department of Dermatology Tokyo Medical University Hachioji Medical Center Hachioji Japan
3. Department of Medical Oncology Nippon Medical School Musashi Kosugi‐Hospital Kawasaki Japan
4. Department of Geriatric and Environmental Dermatology Nagoya City University Graduate School of Medical Sciences Nagoya Japan
5. Department of Dermatology St. Marianna University School of Medicine Kawasaki Japan
6. Department of Dermatology Hyogo Cancer Center Akashi Japan
7. Department of Dermatology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
8. Department of Plastic and Reconstructive Surgery Shizuoka Prefectural Cancer Center Nagaizumi Japan
9. Department of Radiation Oncology Kobe Proton Center Kobe Japan
10. Department of Dermatology Shinshu University Matsumoto Japan
11. Department of Dermatology International University of Health and Welfare Narita Japan