PT - JOURNAL ARTICLE ED - , TI - Correction: Influence of opioid prescribing standards on health outcomes among patients with long-term opioid use: a longitudinal cohort study AID - 10.9778/cmajo.20210242 DP - 2021 Oct 01 TA - CMAJ Open PG - E926--E926 VI - 9 IP - 4 4099 - http://www.cmajopen.ca/content/9/4/E926.short 4100 - http://www.cmajopen.ca/content/9/4/E926.full SO - CMAJ2021 Oct 01; 9