With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Medical societies issue guidelines for when physicians should use MRI on patients and recommend against overuse. MRI can detect health problems or confirm a diagnosis, but medical societies often recommend that MRI not be the first procedure for creating a plan to diagnose or manage a patient's complaint. A common case is to use MRI to seek a cause of low back pain; the American College of Physicians, for example, recommends against this procedure as it is doubtful to result in a positive outcome for the patient.
text_B: If you get an MRI in order to figure out the reason for your low back pain and you experience a positive outcome, is this in contradiction to what the American College of Physicians thinks will happen?
YES.