1. Department of Dermatology; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama Japan
2. Melanoma Center; Okayama University Hospital; Okayama Japan
3. Division of Dermatology; Shizuoka Cancer Center Hospital; Shizuoka Japan
4. Department of Dermatology; National Hospital Organization Okayama Medical Center; Okayama Japan