00415nas a2200145 4500000000100000008004100001100001400042700001200056700001600068700001500084700001200099700001400111245013000125022001400255 2019 d1 aJ. Bedson1 aY. Chen1 aJ. Ashworth1 aR. Hayward1 aK. Dunn1 aK. Jordan00aRisk of adverse events in patients prescribed long-term opioids: A cohort study in the UK Clinical Practice Research Datalink a1090-3801