1 Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan.
2 Department of Dermatology, Ehime University Graduate School of Medicine, Toon, Ehime, 791-0295, Japan, Department of Dermatology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, 791-0280, Japan.