THE SIGNIFICANCE OF THE RATE AND OUTPUT RELATED VARIATIONS IN THE A2-OS INTERVAL.
D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures; D004562:Electrocardiography; D006801:Humans; D008944:Mitral Valve Insufficiency; D008946:Mitral Valve Stenosis; D010701:Phonocardiography; D013903:Thoracic Surgery
ELECTROCARDIOGRAPHY; HEART CATHETERIZATION; HEART SURGERY; MITRAL VALVE INSUFFICIENCY; MITRAL VALVE STENOSIS; PHONOCARDIOGRAPHY