P-WAVE ANALYSIS IN VALVULAR HEART DISEASE.
D001024:Aortic Valve Stenosis; D004562:Electrocardiography; D006349:Heart Valve Diseases; D006801:Humans; D008944:Mitral Valve Insufficiency; D008946:Mitral Valve Stenosis; D011666:Pulmonary Valve Stenosis
AORTIC VALVE STENOSIS; ELECTROCARDIOGRAPHY; HEART VALVE DISEASES; MITRAL VALVE INSUFFICIENCY; MITRAL VALVE STENOSIS; PULMONARY VALVE STENOSIS