Affiliation: | 1. Department of Pediatrics, Jichi Medical University School of Medicine, Shimotsuke, Tochigi, Japan;2. Department of Hematology, Jichi Medical University School of Medicine, Shimotsuke, Tochigi, Japan;3. Division of Molecular Immunology, Institute for Genetic Medicine, Hokkaido University, Kita‐ku, Sapporo, Japan |