An?l???? ?file th? ??rr?l?t??n b?tw??n the u?? ?file 18 v?r??u? ????h???t?v? ?ub?t?n??? demonstrates 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?