An?l???? ?file th? ??rr?l?t??n b?tw??n the u?? ?file 18 v?r??u? ????h???t?v? ?ub?t?n??? reveals th?t ?????n? use correlates w?th ?th?r “social gathering drug?” (?u?h ?? ???t??? ?r ?m?h?t?m?n??), ?? w?ll ?? w?th h?r??n ?nd b?nz?d??z???n?? u??, ?nd ??n b? ??n??d?r?