1 Department of Dermatology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan.
2 Department of Dermatology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan; Watanabe Dermatology Clinic, 1-14-5 Shinjuku, Shinjuku-ku, Tokyo, Japan.
3 Department of Dermatology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan; Watanabe Dermatology Clinic, 1-14-5 Shinjuku, Shinjuku-ku, Tokyo, Japan. kharada@tokyo-med.ac.jp.