1. Medical Education Department, Kansas City University of Medicine and Biosciences, Kansas City, MO 64106, USA
2. Emergency Medicine, Freeman Health System, Joplin, MO 64804, USA
3. Urology, Freeman Health System, Joplin, MO 64804, USA
4. Critical Care Medicine, Freeman Health System, Joplin, MO 64804, USA
5. Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53726, USA