1. Department of Pathology, University of Utah School of Medicine and ARUP Laboratories, Salt Lake City
2. Immunology Laboratory, Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD
3. Allergy and Clinical Immunology Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
4. Department of Pathology, Ann and Robert H. Lurie Children’s Hospital of Chicago, Feinberg School of Medicine, Northwestern University, Chicago, IL
5. Department of Pathology, Laboratory Medicine, and Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
6. Department of Pathology and Laboratory Medicine and Microbiology and Immunology, University of North Carolina, Chapel Hill
7. Department of Cellular and Molecular Immunology Laboratory, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.