[1] Tottori Univ, Fac Med, Dept Med Sensory & Motor Organs, Div Dermatol, 86 Nishi Cho, Yonago, Tottori 6838504, Japan
[2] Kurume Univ, Sch Med, Dept Dermatol, Kurume, Fukuoka, Japan
[3] Matsue Red Cross Hosp, Dept Dermatol, Matsue, Shimane, Japan
[4] Osaka City Univ, Grad Sch Med, Dept Dermatol, Osaka, Japan