1. Department of Dermatology; Aichi Medical University School of Medicine; Nagakute Aichi 480-1195 Japan
2. Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8500 Japan
3. Department of Biomedical Sciences; College of Life and Health Sciences; Chubu University; Kasugai Aichi 487-8501 Japan