1. Department of Pathology University of Texas Southwestern Medical Center Dallas Texas USA
2. Children's Health System Dallas Texas USA
3. Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
4. Department of Pathology, Microbiology, & Immunology Vanderbilt University Medical Center Nashville Tennessee USA
5. Department of Pathology Rady Children's Hospital San Diego San Diego California USA
6. Department of Medicine University of Colorado Aurora Colorado USA
7. Department of Pathology Children's National Hospital Washington DC USA
8. Transfusion Services Inova Fairfax Medical Campus Falls Church Virginia USA
9. Department of Internal Medicine Simmons Cancer Institute, Southern Illinois University School of Medicine Springfield Illinois USA
10. Corporate Medical Affairs Vitalant Scottsdale Arizona USA
11. Department of Pathology Johns Hopkins University School of Medicine Baltimore Maryland USA
12. Laboratory Medicine Program, University Health Network, Department of Laboratory Medicine and Pathobiology University of Toronto Toronto Ontario Canada