1. RTI International Rockville Maryland
2. RTI International Durham North Carolina
3. Pittsburgh Heart, Lung, Blood and Vascular Medicine InstituteUniversity of Pittsburgh Pittsburgh Pennsylvania
4. Division of Pulmonary, Allergy and Critical Care Medicine, Department of MedicineUniversity of Pittsburgh Pittsburgh Pennsylvania
5. Blood Systems Research Institute San Francisco California
6. American Red Cross Farmington Connecticut
7. The Institute for Transfusion Medicine Pittsburgh Pennsylvania
8. University of British Columbia Victoria British Columbia Canada
9. BloodCenter of Wisconsin Milwaukee Wisconsin
10. RTI International Atlanta Georgia