RT Journal Article SR Electronic T1 Screening ECGs in low-risk patients are associated with increased risk of downstream cardiac testing JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP 150 OP 151 DO 10.1136/bmjebm-2018-110943 VO 23 IS 4 A1 Shiwani Mahajan A1 Harlan M Krumholz YR 2018 UL http://ebm.bmj.com/content/23/4/150.abstract AB