[1] Univ Tokyo, Grad Sch Med, Dept Dermatol, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138655, Japan
[2] Japan Community Healthcare Org Tokyo Shinjuku Med, Dept Dermatol, Shinjuku Ku, 5-1 Tsukudo Cho, Tokyo 1628543, Japan
[3] Tokyo Metropolitan Canc & Infect Dis Ctr Komagome, Dept Pathol, Bunkyo Ku, 3-18-22 Honkomagome, Tokyo 1138677, Japan