From the Center for Injury Science (A.I., K.J., P.A., W.A.S., S.W.S., R.L.G., W.W., S.L.C., D.R., J.B.H., J.O.J.), University of Alabama at Birmingham, Birmingham; Center Point Fire District (W.W.), Center Point, Alabama; Bessemer Fire Department (R.H.), Bessemer, Alabama; and Department of Emergency Medicine (Z.Q.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
Submitted: October 15, 2020, Revised: March 31, 2021, Accepted: April 1, 2021, Published online: May 10, 2021.
Address for reprints: Jan O. Jansen, MBBS, PhD, Center for Injury Science, University of Alabama at Birmingham, 1922 7th Ave S, Birmingham, AL 35294; email: [email protected].