RT Journal Article SR Electronic T1 Effect of self-reported cannabis use on postoperative outcomes: a propensity matched cohort analysis of non-cardiac surgery patients JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2021-102754 DO 10.1136/rapm-2021-102754 A1 Harsha Shanthanna A1 Betty Huiyu Zhang A1 Haris Saud A1 Neil Sengupta A1 Max Chen A1 Devyani Bakshi A1 Liz Richardson A1 Li Wang YR 2021 UL http://rapm.bmj.com/content/early/2021/05/13/rapm-2021-102754.abstract AB