title: Reassessment of Graham Steell murmur using platinum electrode technique.
mesh_terms: D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D001205:Ascorbic Acid; D001794:Blood Pressure; D006328:Cardiac Catheterization; D003937:Diagnosis, Differential; D004562:Electrocardiography; D004566:Electrodes; D006326:Heart Auscultation; D006337:Heart Murmurs; D006801:Humans; D008722:Methods; D010984:Platinum; D011651:Pulmonary Artery; D011665:Pulmonary Valve Insufficiency / Q000175:diagnosis*
chemical_list: D010984:Platinum; D001205:Ascorbic Acid