1. Harborview Injury Prevention and Research Center (HIPRC) Seattle Washington USA
2. San Juan Bautista School of Medicine Cauguas Puerto Rico
3. Department of Anesthesiology and Pain Medicine University of Washington Seattle Washington USA
4. Department of Surgery University of Washington School of Medicine Seattle Washington USA
5. Department of Pediatrics University of Washington Seattle Washington USA
6. Department of Laboratory Medicine and Pathology University of Washington Seattle Washington USA
7. Harborview Medical Center Transfusion Medicine Service Harborview Transfusion Medicine Service Seattle Washington USA