 in the 16 to 18 age ranges compared to the slightly older group. What was somewhat unexpected was to see a fairly large difference in the subsequent diagnosis of abuse in females as opposed to males. And you did have a technique, I understand, to screen out patients who might have already been using opioids, didn't you? Exactly. So we excluded anyone who had had an opioid prescription in the prior 12 months. We also excluded patients who had had any diagnosis relating