1. Department of LaboratoriesSeattle Children's Hospital Seattle Washington
2. Department of Laboratory MedicineUniversity of Washington Seattle Washington
3. Department of PathologyUniversity of Utah Salt Lake City Utah
4. ARUP Institute for Clinical and Experimental Pathology Salt Lake City Utah
5. Department of PediatricsUniversity of Minnesota Medical School Minneapolis Minnesota
6. Department of Pediatrics, Medicine, PathologyMicrobiology and Immunology and Cell Biology and AnatomyNew York Medical College Valhalla New York
7. National Cancer Institute Bethesda Maryland