1. Department of Dermatology; Okayama University Medical School; Shikata-cHô 2-5-1 Okayama 700 Japan
2. First Department of Medicine; Okayama University Medical School; Shikata-cHô 2-5-1 Okayama 700 Japan
3. Division of Dermatology; Okayama Saiseikai Hospital; Ifuku-cHô 1-17-18 Okayama 700 Japan