1. The University of North Carolina at Chapel Hill School of Medicine, Department of Family Medicine, Chapel Hill, North Carolina, USA
2. The University of North Carolina at Chapel Hill School of Medicine, Department of Pathology and Laboratory Medicine and UNC Hospitals McLendon Clinical Laboratories, Chapel Hill, North Carolina, USA
3. The University of North Carolina at Chapel Hill School of Medicine, Department of Microbiology and Immunology, Chapel Hill, North Carolina, USA
4. The University of North Carolina at Chapel Hill Gillings School of Global Public Health, Department of Biostatistics, Chapel Hill, North Carolina, USA
5. UNC Physicians Network, Chapel Hill, North Carolina, USA
6. The University of North Carolina at Chapel Hill School of Medicine, Center for Environmental Medicine, Asthma and Lung Biology, Chapel Hill, North Carolina, USA
7. The University of North Carolina at Chapel Hill Gillings School of Global Public Health, Department of Epidemiology, Chapel Hill, North Carolina, USA
8. UNC Health Information Services Division, Chapel Hill, North Carolina, USA
9. The University of North Carolina at Chapel Hill School of Medicine, Department of Emergency Medicine, Chapel Hill, North Carolina, USA
10. The University of North Carolina at Chapel Hill, North Carolina Translational and Clinical Sciences Institute, Chapel Hill, North Carolina, USA
11. UNC REX Healthcare, Raleigh, North Carolina, USA
12. UNC Health Nash General Hospital, Rocky Mount, North Carolina, USA
13. The University of North Carolina at Chapel Hill School of Medicine, Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina, USA
14. The University of North Carolina at Chapel Hill School of Medicine, Department of Pediatrics, Chapel Hill, North Carolina, USA