title: Letter by Brutsaert and De Keulenaer Regarding Article, "Effects of Sildenafil on Ventricular and Vascular Function in Heart Failure With Preserved Ejection Fraction".
authors.affiliation: Faculty of Medicine and Pharmacy, University of Antwerp, Antwerp, Belgium.
authors.forename: Dirk L
authors.initials: DL
authors.lastname: Brutsaert
authors.affiliation: Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium.
authors.forename: Gilles W
authors.initials: GW
authors.lastname: De Keulenaer
mesh_terms: D004730:Endothelium, Vascular / Q000187:drug effects*; D005260:Female; D006333:Heart Failure / Q000188:drug therapy*; D006439:Hemodynamics / Q000187:drug effects*; D006801:Humans; D008297:Male; D058986:Phosphodiesterase 5 Inhibitors / Q000627:therapeutic use*; D010879:Piperazines / Q000627:therapeutic use*; D013449:Sulfonamides / Q000627:therapeutic use*; D014665:Vasodilator Agents / Q000627:therapeutic use*; D016277:Ventricular Function, Left / Q000187:drug effects*
chemical_list: D058986:Phosphodiesterase 5 Inhibitors; D010879:Piperazines; D013449:Sulfonamides; D014665:Vasodilator Agents