1 Department of Dermatology, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan. E-mail: tasawa@koto.kpu-m.ac.jp; Department of Dermatology, Otsu Municipal Hospital, 2-9-9, Motomiya, Otsu, Shiga, 520-0804, Japan.
2 Department of Dermatology, Otsu Municipal Hospital, 2-9-9, Motomiya, Otsu, Shiga, 520-0804, Japan.
3 Department of General Medicine, Otsu Municipal Hospital, 2-9-9, Motomiya, Otsu, Shiga, 520-0804, Japan.