An?l???? ?file th? ??rr?l?t??n b?tw??n the u?? ?f 18 v?r??u? ????h???t?v? ?ub?t?n??? exhibits th?t ?????n? use correlates w?th ?th?r “get together 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?d ?? a