1. Department of PathologyUniversity of Pittsburgh Pittsburgh Pennsylvania
2. School of MedicineUniversity of Pittsburgh Pittsburgh Pennsylvania
3. Department of BioengineeringUniversity of Pittsburgh Pittsburgh Pennsylvania
4. Department of Pediatrics, Division of Critical Care MedicineWashington University in St. Louis St Louis Missouri
5. Department of SurgeryUniversity of Pittsburgh Pittsburgh Pennsylvania
6. Department of Critical Care MedicineUniversity of Pittsburgh Pittsburgh Pennsylvania
7. The Institute for Transfusion Medicine Pittsburgh Pennsylvania