Unusual P waves in mitral stenosis.
D004562:Electrocardiography; D005260:Female; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000175:diagnosis* / Q000601:surgery; D014261:Tricuspid Valve