1. Department of Molecular Patho-Biochemistry and Patho-Biology; Yamagata University School of Medicine; Yamagata Japan
2. Institute of Experimental Hematology and Transfusion Medicine; University Clinic Bonn; Bonn Germany
3. Department of Medicine (Hematology); Ako Central Hospital; Ako Japan
4. Department of Medicine (Hematology); Tottori Prefectural Central Hospital; Tottori Japan