Affiliation: | aDepartment of Emergency Medicine, Hennepin County Medical Center, 701 Park Avenue South, Minneapolis, MN 55415, USA;bDepartment of Emergency Medicine, Lompoc District Hospital, 508 East Hickory Avenue, Lompoc, CA 93436, USA;cCity of Phoenix Fire Department, 150 S. 12th Street, Phoenix, AZ 85034, USA |