TY - JOUR KW - Crack cocaine KW - general practice KW - health-care use KW - heroin KW - Secondary Care KW - Substance-related disorders AU - N. Van Hest AU - T. Brothers AU - A. Williamson AU - D. Lewer AD - Department of Epidemiology and Public Health, University College London, London, UK. Department of Medicine, Dalhousie University, Halifax, Canada. School of Health and Wellbeing, MVLS, University of Glasgow, Glasgow, UK. Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK. AN - 38049387 BT - Addiction DO - 10.1111/add.16401 DP - NLM ET - 2023/12/05 LA - eng N1 - 1360-0443 van Hest, Naomi Orcid: 0009-0001-2282-8584 Brothers, Thomas D Orcid: 0000-0002-5570-5556 Williamson, Andrea Lewer, Dan Orcid: 0000-0003-3698-7196 DRF-2018-11-ST2-016/National Institute for Health and Care Research/ Journal Article England Addiction. 2023 Dec 4. doi: 10.1111/add.16401. PY - 2023 SN - 0965-2140 T2 - Addiction TI - Health-care resource use among patients who use illicit opioids in England, 2010-20: A descriptive matched cohort study ER -