Yuka Maya1, Asako Tashimo2, Mitsuhito Ota3. 1. Department of Dermatology, Chitose City Hospital, Chitose, Japan. 2. Department of Ophthalmology, Chitose City Hospital, Chitose, Japan. 3. Department of Dermatology, Chitose City Hospital, Chitose, Japan. Electronic address: ota@med.hokudai.ac.jp.