title: ON THE METHODOLOGY OF INTRACARDIAC PHONOCARDIOGRAPHY.
mesh_terms: D001024:Aortic Valve Stenosis; D004373:Ductus Arteriosus; D004374:Ductus Arteriosus, Patent; D006801:Humans; D008946:Mitral Valve Stenosis; D010701:Phonocardiography; D011666:Pulmonary Valve Stenosis
keywords: AORTIC VALVE STENOSIS; DUCTUS ARTERIOSUS, PATENT; MITRAL VALVE STENOSIS; PHONOCARDIOGRAPHY; PULMONARY VALVE STENOSIS