“…We identified six studies that occurred in HIV care settings [12, 17-20, 57, 58, 61-63, 67, 73], 12 studies that occurred in opioid treatment settings [52-56, 60, 64-66, 68-70, 74, 75], and five studies that occurred in other settings, including correctional settings [71,72], primary care clinics [58], mobile syringe-exchange units [15] or public health clinics [59]. The added element that defined interventions as integrated care was most often either OUD care or HIV care alone to a facility already providing care for the other disorder; in two studies both OUD and HIV care were introduced simultaneously and correctional facilities were the points-of-entry for both [71,72].…”