1. Hoxworth Blood Center Cincinnati Ohio USA
2. Cerus Corporation Concord California USA
3. Bloodworks Northwest Seattle Washington USA
4. Division of Hematology, Department of Medicine University of Washington Medical Center Seattle Washington USA
5. Duke University Durham North Carolina USA
6. Vitalant Research Institute Denver Colorado USA
7. Canadian Blood Services Ottawa Canada
8. Dartmouth Hitchcock Medical Center Lebanon New Hampshire USA
9. Institute of Hematology and Transfusion Medicine Warsaw Poland