Affiliation: | (1) Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Showa-machi 3-39-15, Maebashi, Gunma 371-8511, Japan;(2) Division of Blood Transfusion Service, Gunma University Hospital, Gunma, Japan;(3) School of Health Sciences, Faculty of Medicine, Gunma University, Gunma, Japan |