1. Department of Dermatology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima, Bunkyo-ku Tokyo 113-8510 Japan
2. Department of Pathology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45, Yushima, Bunkyo-ku Tokyo 113-8510 Japan