TY - JOUR T1 - Anxiolytic and sedative polypharmacy among US opioid users: a cross-sectional study JF - Regional Anesthesia & Pain Medicine JO - Reg Anesth Pain Med SP - 370 LP - 371 DO - 10.1136/rapm-2021-103278 VL - 47 IS - 6 AU - Brian D Sites AU - Matthew Davis AU - Michael Herrick Y1 - 2022/06/01 UR - http://rapm.bmj.com/content/47/6/370.abstract N2 - ER -