1. Departments of Emergency Medicine, Anesthesia, and Epidemiology University of Iowa Carver College of Medicine Iowa City Iowa USA
2. Department of Emergency Medicine University of Iowa Carver College of Medicine Iowa City Iowa USA
3. Departments of Emergency Medicine and Epidemiology University of Iowa Carver College of Medicine Iowa City Iowa USA
4. Department of Biostatistics University of Iowa College of Public Health Iowa City Iowa USA
5. Department of Health Management and Policy University of Iowa College of Public Health Iowa City Iowa USA
6. Department of Pediatrics University of Utah Salt Lake City Utah USA
7. Department of Family Medicine University of South Dakota Sanford School of Medicine Sioux Falls South Dakota USA
8. Avel eCARE Sioux Falls South Dakota USA
9. Department of Emergency Medicine Massachusetts General Hospital Boston Massachusetts USA
10. Department of Geography University of Iowa College of Liberal Arts and Sciences Iowa City Iowa USA