Author(s) : Sei-Ichiro Motegi, Atsushi Tamura, Shigefumi Tanaka, Kyoko Nagai, Osamu Ishikawa , Department of Dermatology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan, Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan, Department of Otolaryngology-Head & Neck Surgery, Gunma University Graduate School of Medicine, Gunma, Japan. |