1. Department of Pediatrics, Division of Hematology and Oncology, Children’s Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, CA;
2. Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA;
3. German Red Cross Blood Service and Institute for Transfusion Medicine and Immunohematology, Goethe University, Frankfurt, Germany;
4. Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, CA;
5. Department of Pediatrics, University of California San Francisco, San Francisco, CA;
6. Department of Laboratory Medicine and Genetics and
7. Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea;
8. Department of Hematology and Oncology, University Hospital Mannheim, Mannheim, Germany;
9. Department of Pathology & Laboratory Medicine, University of California Los Angeles, Los Angeles, CA;
10. University of New Mexico Cancer Center and Departments of Pathology, Internal Medicine, Mathematics and Statistics, and Physics and Astronomy, University of New Mexico, Albuquerque, NM; and
11. Department of Medicine/Hematology, University of Washington, Seattle, WA