RT Journal Article SR Electronic T1 Heartbeat: interaction of renin–angiotensin–aldosterone blocking drugs with COVID-19 disease susceptibility and severity JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1451 OP 1453 DO 10.1136/heartjnl-2020-318164 VO 106 IS 19 A1 Catherine M Otto YR 2020 UL http://heart.bmj.com/content/106/19/1451.abstract AB