title: Apex cardiogram in patients with prolapsing mitral valve.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000680:Amyl Nitrite; D006328:Cardiac Catheterization; D002932:Cineangiography; D004452:Echocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006326:Heart Auscultation; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000503:physiopathology*; D008944:Mitral Valve Insufficiency / Q000503:physiopathology*
chemical_list: D000680:Amyl Nitrite