1. Department of Oral Maxillofacial Surgery; Tokyo Medical University Hospital; Shinjuku Tokyo Japan
2. Department of Dermatology; Tokyo Medical University Ibaraki Medical Centre; Ami Ibaraki Japan
3. Division of Biological Science; Graduate School of Science; Nagoya University; Nagoya Aichi Japan
4. Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan