1. Aflac Cancer Center and Blood Disorders Services at Children's Healthcare of Atlanta, Atlanta, Georgia
2. Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
3. Intermountain Healthcare, Salt Lake City, Utah
4. Emory University School of Public Health, Atlanta, Georgia
5. Canadian Blood Services, Ottawa, Ontario, Canada
6. Drexel University College of Medicine, Philadelphia, Pennsylvania