RT Journal Article SR Electronic T1 Does the purported mortality benefit of beta-blocker therapy in heart failure with a preserved ejection fraction apply to patients without prior myocardial infarction? JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1135 OP 1135 DO 10.1136/heartjnl-2018-313079 VO 104 IS 13 A1 Nilay Kumar YR 2018 UL http://heart.bmj.com/content/104/13/1135.1.abstract AB