1. Department of Transplant SurgeryHokkaido University Graduate School of MedicineSapporo Japan
2. Department of Surgery IHokkaido University Graduate School of MedicineSapporo Japan
3. Division of Organ TransplantationHokkaido University HospitalSapporo Japan
4. Division of Advanced Medical ResearchHokkaido University HospitalSapporo Japan
5. Department of HematologyHokkaido University HospitalSapporo Japan
6. Department of PathologyHokkaido University Graduate School of MedicineSapporo Japan
7. Center for Allergy and ImmunologyJuntendo University School of MedicineTokyo Japan
8. Department of PathologyUniversity of Pittsburgh Medical CenterPittsburgh PA