1. Department of Pediatrics; Shimane University School of Medicine; Matsue Shimane Japan
2. Division of Blood Transfusion; Shimane University Hospital; Izumo Shimane Japan
3. Department of Digestive and General Surgery; Shimane University School of Medicine; Matsue Shimane Japan
4. Department of Organ Pathology; Shimane University School of Medicine; Matsue Shimane Japan
5. Department of Pediatrics; Matsue City Hospital; Matsue Shimane Japan