RT Journal Article SR Electronic T1 Ventricular tachycardia in the absence of structural heart disease JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 645 OP 656 DO 10.1136/heartjnl-2017-311590 VO 105 IS 8 A1 Ammar M Killu A1 William G Stevenson YR 2019 UL http://heart.bmj.com/content/105/8/645.abstract AB