1. Department of Infectious Disease and Infection Control, Saitama Medical University, 38 Morohongo, Saitama 350-0495, Japan
2. Departments of Allergy and Immunology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Saitama 350-0495, Japan
3. Department of Radiology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Saitama 350-0495, Japan
4. Department of Neurology, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Saitama 350-0495, Japan
5. Department of Clinical Laboratory, Faculty of Medicine, Saitama Medical University, 38 Morohongo, Saitama 350-0495, Japan