1 Department of Emergency Medicine, University of Minnesota, Minneapolis, MN; Department of Emergency Medicine, Hennepin Healthcare, Minneapolis, MN. Electronic address: john.hick@hcmed.org.
2 Department of Emergency Medicine, University of Minnesota, Minneapolis, MN; Department of Emergency Medicine, HealthPartners Medical Group and Regions Hospital, St Paul, MN.
3 Department of Surgery, University of Nevada Las Vegas, Las Vegas, NV.
4 Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX.
5 Department of Surgery, Regions Hospital, St Paul, MN; Department of Surgery, University of Minnesota, Minneapolis, MN.