title: [Clinical investigation of myocardial contractility of the normal, hypertensive and hypertrophic heart--by means of atrial pacing and the conventional catheterization].
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D010138:Pacemaker, Artificial; D010701:Phonocardiography