1. Massachusetts General Hospital; Boston Massachusetts
2. Department of Pathology and Laboratory Medicine, Division of Transfusion Medicine; UCLA Medical Center; Los Angeles California
3. Lab Medicine and Pathology; University of Minnesota Medical Center; Minneapolis Minnesota
4. Medicine and Department of Pathology and Molecular Medicine; McMaster University; Hamilton Ontario Canada
5. Hemotherapy and Hemostasis; University Clinic Hospital; Barcelona Spain
6. Pathology; Brigham and Women's Hospital; Boston Massachusetts
7. Laboratory Medicine; University of Washington, and Puget Sound Blood Center; Seattle Washington
8. Institut for Immunology and Transfusion Medicine; Ernst-Moritz-Arndt-University; Greifswald Germany
9. John Radcliffe Hospital; NHS Blood & Transplant; Oxford UK
10. Transfusion Medicine; Haukeland University Hospital; Bergen Norway
11. Institute for Transfusion Medicine; Pittsburgh Pennsylvania