Affiliation: | 1. Department of Public Health, Fukushima Medical University School of Medicine, , Fukushima, Japan;2. Department of Global Health and Population, Harvard School of Public Health, , Boston, MA, USA;3. Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, , Fukushima, Japan;4. Japanese Red Cross Society, Fukushima Blood Center, , Fukushima, Japan |