RT Journal Article SR Electronic T1 Stroke volume index in mild-moderate aortic stenosis: more than a barometer of systolic function? JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1398 OP 1399 DO 10.1136/heartjnl-2017-311483 VO 103 IS 18 A1 Anvesha Singh A1 Gerry P McCann YR 2017 UL http://heart.bmj.com/content/103/18/1398.abstract AB