RT Journal Article SR Electronic T1 Causal inference for clinicians JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP 109 OP 112 DO 10.1136/bmjebm-2018-111069 VO 24 IS 3 A1 Steven D Stovitz A1 Ian Shrier YR 2019 UL http://ebm.bmj.com/content/24/3/109.abstract AB