[1] Yamagata Univ, Sch Med, Dept Dermatol, Yamagata 9909585, Japan
[2] Kurume Univ, Sch Med, Dept Dermatol, Kurume, Fukuoka 830, Japan
[3] Univ Tokushima, Grad Sch, Inst Hlth Biosci, Dept Dermatol, Tokushima 770, Japan
[4] Kawasaki Med Sch, Dept Dermatol, Kurashiki, Okayama, Japan
[5] Kobe Univ, Grad Sch Med, Dept Clin Mol Med, Div Dermatol, Kobe, Hyogo 657, Japan
[6] Nagoya Univ, Grad Sch Med, Dept Dermatol, Nagoya, Aichi 4648601, Japan