1. Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
2. University of South Carolina School of Medicine Greenville, Greenville, SC, USA
3. Tri-Cities Community Health, Pasco, WA, USA
4. University of Virginia School of Medicine, Charlottesville, VA, USA
5. Department of Emergency Medicine, Albert Einstein College of Medicine, New York, NY, USA
6. Department of Public Health, Hofstra School of Health and Human Services, New York, NY, USA
7. University of New Mexico Hospital, Albuquerque, NM, USA
8. CareMore Health, Cerritos, CA, USA