1. Center for Science of Environment, Resources, and Energy, Keio University Faculty of Science and Technology, 3‐14‐1 Hiyoshi, Kohoku‐ku, Yokohama 223‐8522, Japan
2. Department of Radiology, Tachikawa Hospital, 4‐2‐22 Nishiki‐cho, Tachikawa, Tokyo 190‐8531, Japan
3. Department of Transfusion Medicine, The University of Tokyo Hospital, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐0033, Japan
4. Department of Allergy and Rheumatology, The University of Tokyo Hospital, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐0033, Japan