1. Department of Laboratory Medicine, Yale School of Medicine New Haven Connecticut USA
2. Department of Pathology, Microbiology and Immunology Vanderbilt University Medical Center Nashville Tennessee USA
3. Department of Pathology, Anatomy, and Cell Biology Thomas Jefferson University Hospital Philadelphia Pennsylvania USA
4. Department of Pharmaceutical Services, Emory Healthcare Atlanta Georgia USA
5. Division of Transfusion Medicine, Harvard Medical School Boston Massachusetts USA
6. Division of Transfusion Medicine and Hemostasis, Department of Pathology University of Texas Southwestern Dallas Texas USA