title: THE USE OF THE VALSALVA MANEUVER TO DIFFERENTIATE FIXED-ORIFICE AORTIC STENOSIS FROM MUSCULAR SUBAORTIC STENOSIS.
mesh_terms: D001018:Aortic Diseases; D001024:Aortic Valve Stenosis; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic; D003251:Constriction, Pathologic; D003937:Diagnosis, Differential; D006321:Heart; D006801:Humans; D014636:Valsalva Maneuver
keywords: AORTIC DISEASES; AORTIC VALVE STENOSIS; BLOOD PRESSURE; DIAGNOSIS, DIFFERENTIAL; HEART CATHETERIZATION; VALSALVA'S MANEUVER