1. Department of Dermatology Tohoku University Graduate School of Medicine Sendai Japan
2. Department of Dermatology Jichi Medical School Shimono Japan
3. Department of Geriatric and Environmental Dermatology Nagoya City University Graduate School of Medical Sciences Nagoya Japan
4. Department of Dermatology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
5. Department of Dermato‐Oncology/Dermatology National Hospital Organization Kagoshima Medical Center Kagoshima Japan
6. Department of Dermato‐Oncology/Dermatology Cancer Institute Hospital of Japanese Foundation for Cancer Research Tokyo Japan
7. Department of Dermatology University of Tsukuba Tsukuba Japan
8. Department of Dermatology University of Ehime Matsuyama Japan