“…The reference standards were x-ray [ 33 – 36 , 38 , 40 , 44 , 46 , 49 ], unclear [ 11 ], or x-ray or CT [ 10 , 12 , 37 , 39 , 41 – 43 , 45 , 47 , 48 ]. Findings were interpreted by a radiologist [ 33 – 35 , 39 , 41 , 43 , 45 , 46 , 49 ], surgeon [ 12 , 33 , 35 , 36 , 42 ], or an unreported specialist [ 10 , 11 , 37 , 38 , 40 , 44 , 47 , 48 ]. One study [ 48 ] focused on an unstable pelvic fracture.…”