1. Department of Disease Model, Research Institute of Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
2. Departments of Multidisciplinary Treatment of Cancer and Regional Medical Support, Fukushima Medical University School of Medicine, Fukushima, Japan
3. Neurovirology Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
4. Department of Otorhinolaryngology, Nippon Medical School, Tokyo, Japan
5. Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan