[1] Univ Utah Hosp, Dept Radiol & Imaging Sci, Salt Lake City, UT USA
[2] Univ Utah Hosp, Dept Family & Prevent Med, Salt Lake City, UT USA
[3] St Marks Family Med Residency, Dept Family Med, Millcreek, UT USA
[4] Univ Utah Hosp, Dept Internal Med, Salt Lake City, UT USA
[5] Klinikum Bamberg, Dept Orthoped & Trauma Surg, Bamberg, Germany
[6] Friedrich Alexander Univ Erlangen Nurnberg, Dept Orthoped & Trauma Surg, FRG, Erlangen, Germany
[7] Univ Colorado, Sch Med, Dept Emergency Med, Wilderness Med Sect, Aurora, CO USA
[8] Leeds Becket Univ, Sch Hlth, Leeds, England
[9] Univ Bayreuth, Dept Sport Sci, Div Exercise Physiol & Metab, Bayreuth, Germany