1. Department of Dermatology; Asahikawa Medical University; Asahikawa; Japan
2. Department of Dermatology; Asahikawa Kose General Hospital; Asahikawa; Japan
3. Department of Dermatology; Engaru General Hospital; Asahikawa; Japan
4. Department of Dermatology; Nakashibetu City Hospital; Asahikawa; Japan
5. Department of Psychiatry; Asahikawa Civil General Hospital; Asahikawa; Japan