1. Department of Dermatology, School of Medicine; Mie University; Tsu Mie 514
2. Department of Medical Zoology, School of Medicine; Mie University; Tsu Mie 514
3. Department of Medical Zoology, School of Medicine; Nagoya University; Nagoya 466
4. Department of Biology, Faculty of Science; Kanazawa University; Kanazawa 920
5. Department of Dermatology; Kudanzaka Hospital; 2-1-39, Kudanminami Chiyoda-ku Tokyo 102 Japan