RT Journal Article SR Electronic T1 Heart failure: not just a disease of the elderly JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP heartjnl-2021-320273 DO 10.1136/heartjnl-2021-320273 A1 Lee Nedkoff A1 Courtney Weber YR 2021 UL http://heart.bmj.com/content/early/2021/11/21/heartjnl-2021-320273.abstract AB