1. Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, Washington, USA
2. Department of Biomedical Informatics and Medical Education, University of Washington School of Medicine, Seattle, Washington, USA
3. Department of Pathology, University of Utah, Salt Lake City, Utah, USA
4. ARUP Laboratories, Salt Lake City, Utah, USA
5. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA