In State v. Mares, 113 Utah 225, 192 P.2d 861, 867 (Utah 1948), a portion of the witness' testimony was permitted to "show the doctor's original findings on the course of the bullet which was consistent with the evidence given by the doctor at the trial." 192 P.2d at 867. The Court held that this admission was not prejudicial because the cross-examination attempted to demonstrate that the doctor "had changed his theory on the course of the bullet since the time of his previous statement," and the portion of the autopsy report demonstrated that the doctor's position had not changed. Id.