TY - JOUR KW - Analgesics, Opioid/therapeutic use KW - Buprenorphine/therapeutic use KW - Humans KW - Methadone/therapeutic use KW - Observational Studies as Topic KW - Opioid-Related Disorders/drug therapy KW - Randomized Controlled Trials as Topic KW - opioid agonist treatment KW - Randomization KW - Rapid review KW - Retention AU - J. Klimas AU - M. A. Hamilton AU - L. Gorfinkel AU - A. Adam AU - W. Cullen AU - E. Wood A1 - AD - British Columbia Centre On Substance Use, 400-1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada. jan.klimas@ubc.ca.; Innovation Support Unit, Department of Family Practice, University of British Columbia, 3rd Floor David Strangway Building, 5950 University Boulevard, Vancouver, BC, V6T 1Z3, Canada. jan.klimas@ubc.ca.; Innovation Support Unit, Department of Family Practice, University of British Columbia, 3rd Floor David Strangway Building, 5950 University Boulevard, Vancouver, BC, V6T 1Z3, Canada.; Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.; British Columbia Centre On Substance Use, 400-1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada.; School of Medicine, University College Dublin, Health Sciences Centre, Belfield, Dublin 4, Ireland.; British Columbia Centre On Substance Use, 400-1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada.; Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada. BT - Systematic reviews C5 - Financing & Sustainability; Opioids & Substance Use CP - 1 DO - 10.1186/s13643-021-01764-9 IS - 1 JF - Systematic reviews LA - eng M1 - Journal Article PB - . The Author(s) PY - 2021 SN - 2046-4053; 2046-4053 SP - 216 T1 - Retention in opioid agonist treatment: a rapid review and meta-analysis comparing observational studies and randomized controlled trials T2 - Systematic reviews TI - Retention in opioid agonist treatment: a rapid review and meta-analysis comparing observational studies and randomized controlled trials U1 - Financing & Sustainability; Opioids & Substance Use U2 - 34362464 U3 - 10.1186/s13643-021-01764-9 VL - 10 VO - 2046-4053; 2046-4053 Y1 - 2021 Y2 - Aug 6 ER -