[1] Univ Tokyo, Dept Dermatol, Fac Med, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138655, Japan
[2] Int Univ Hlth & Welf, Dept Dermatol, Chiba, Japan
[3] Univ Tokyo, Grad Sch Med, Dept Hematol & Oncol, Tokyo, Japan
[4] Univ Tokyo Hosp, Dept Cell Therapy & Transplantat, Tokyo, Japan