1. Department of Dermatology Sapporo Medical University School of Medicine Sapporo Japan
2. Department of Dermatology Saitama Medical University Saitama Japan
3. Dermatology Division Shizuoka Cancer Center Hospital Shizuoka Japan
4. Pharmacovigilance Division Ono Pharmaceutical Osaka Japan
5. Department of Dermatologic Oncology National Cancer Center Hospital Tokyo Japan