title: The bedside Valsalva maneuver in the diagnosis of congestive heart failure.
authors.forename: M J
authors.initials: MJ
authors.lastname: Zema
mesh_terms: D001794:Blood Pressure; D006333:Heart Failure / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D014636:Valsalva Maneuver / Q000502:physiology*; D016277:Ventricular Function, Left