1. Department of Dermatology, Faculty of Medicine; Kagawa University; 1750-1 Ikenobe, Miki-cho Kita-gun Kagawa 761-0793 Japan
2. Department of Otolaryngology, Faculty of Medicine; Kagawa University; 1750-1 Ikenobe, Miki-cho Kita-gun Kagawa 761-0793 Japan