title: Letter by de Dios Regarding Article, "Effect of Selective Heart Rate Slowing in Heart Failure With Preserved Ejection Fraction".
authors.affiliation: Department of Cardiology, University Hospital La Zarzuela, Madrid, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: de Dios
mesh_terms: D006333:Heart Failure; D006339:Heart Rate; D006801:Humans; D013318:Stroke Volume