RT Journal Article SR Electronic T1 Stress echocardiography in the assessment of native valve disease JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1034 OP 1043 DO 10.1136/heartjnl-2018-313012 VO 105 IS 13 A1 Khattar, Rajdeep S A1 Senior, Roxy YR 2019 UL http://heart.bmj.com/content/105/13/1034.abstract AB