[On right unipolar precordial leads in patients with mitral disease].
D002908:Chronic Disease; D004194:Disease; D004562:Electrocardiography; D006331:Heart Diseases; D006349:Heart Valve Diseases; D006801:Humans; D008943:Mitral Valve; D012214:Rheumatic Heart Disease
ELECTROCARDIOGRAPHY; MITRAL VALVE/diseases