RT Journal Article SR Electronic T1 The need for speed: modulating left ventricular assist device flow in response to varying physiological conditions JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 996 OP 997 DO 10.1136/heartjnl-2022-320836 VO 108 IS 13 A1 Jeffrey Keenan A1 Jay Pal YR 2022 UL http://heart.bmj.com/content/108/13/996.abstract AB