title: Left ventricular dysfunction discriminated noninvasively beat-to-beat.
mesh_terms: D001450:Ballistocardiography; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D013318:Stroke Volume; D013599:Systole; D014636:Valsalva Maneuver