discussed Cited "see" State v. Streater See State v. O'Connor, 150 N.C.App. 710 , 712, 564 S.E.2d 296 , 297 ("[B]ecause there was no physical evidence of abuse and the State's case was almost entirely dependent on J.M.'s credibility with the jury, the admission of Dr. Brown's statement was plain error." (citations omitted)), disc. review denied, 356 N.C. 173 , 567 S.E.2d 144 (2002); State v. Couser, 163 N.C.App. 727 , 731, 594 S.E.2d 420 , 423 (2004) ("We conclude that the impermissible expert medical opinion evidence had a probable impact on the jury's result because it amounted to an improper opinion on the victim's credibility, w…