title: [Heart failure with preserved ejection fraction: why is it so challenging?].
authors.forename: Antonello
authors.initials: A
authors.lastname: Gavazzi
mesh_terms: D018450:Disease Progression; D019317:Evidence-Based Medicine; D006333:Heart Failure / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology; D006801:Humans; D012307:Risk Factors; D013318:Stroke Volume