1 Department of Dermatology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
2 Department of Dermatology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan. Electronic address: utani@nagasaki-u.ac.jp.
3 Sapporo Dermatopathology Institute, Kita-ku-kita 18 Jo-nishi 3-2-21, Sapporo, 001-0018, Japan.
4 Department of Diagnostic Pathology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan, Japan.
5 Department of Dermatology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, 879-5593, Japan.