1. RTI International Research Triangle Park North Carolina
2. Vitalant Research Institute (formerly Blood Systems Research Institute) San Francisco California
3. Department of Laboratory MedicineUniversity of California San Francisco San Francisco California
4. RTI International Rockville, Maryland
5. New York Blood Center New York New York
6. Penn Transplant Institute, Department of Surgery, Perelman School of MedicineUniversity of Pennsylvania Philadelphia Pennsylvania
7. UCSF Benioff Children's Hospital Oakland Oakland California
8. Sinopia Biosciences San Diego California
9. MRC/BHF Cardiovascular Epidemiology Unit, Department of Public Health and Primary CareUniversity of Cambridge Cambridge UK
10. NIHR Blood and Transplant Unit in Donor Health and GenomicsUniversity of Cambridge Cambridge UK
11. Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
12. Division of Pulmonary, Allergy and Critical Care Medicine, Department of MedicineUniversity of Pittsburgh Pittsburgh Pennsylvania
13. Blood Research InstituteBlood Center of Wisconsin Milwaukee Wisconsin
14. Department of Cell Biology, Neurobiology and AnatomyMedical College of Wisconsin Milwaukee Wisconsin
15. University of British Columbia Victoria British Columbia Canada
16. Affymetrix Incorporated Santa Clara California
17. RTI International Atlanta Georgia