1. Department of Dermatology Asahikawa Medical University Asahikawa Japan
2. Medical Affairs Kyowa Kirin Co., Ltd. Tokyo Japan
3. Biostatistics Center Kurume University Kurume Japan
4. Department of Dermatology JR Sapporo Hospital Sapporo Japan
5. Department of Dermatology Osaka General Medical Center Osaka Japan
6. Department of Dermatology Kansai Medical University Osaka Japan
7. Department of Dermatology Nippon Medical School Tokyo Japan
8. Department of Dermatology Gifu University Graduate School of Medicine Gifu Japan
9. Department of Dermatology Fukuoka University Faculty of Medicine Fukuoka Japan