1 Department of Human Immunology, Research Institute for Frontier Medicine Sapporo Medical University School of Medicine, Sapporo, Japan; Department of Dermatology, Sapporo Medical University School of Medicine, Sapporo, Japan.
2 Department of Human Immunology, Research Institute for Frontier Medicine Sapporo Medical University School of Medicine, Sapporo, Japan; Department of Otolaryngology-Head and Neck Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
3 Department of Human Immunology, Research Institute for Frontier Medicine Sapporo Medical University School of Medicine, Sapporo, Japan.
4 Department of Otolaryngology-Head and Neck Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
5 Department of Dermatology, Sapporo Medical University School of Medicine, Sapporo, Japan.
6 Department of Human Immunology, Research Institute for Frontier Medicine Sapporo Medical University School of Medicine, Sapporo, Japan. Electronic address: ichimiya@sapmed.ac.jp.