[Clinical significance of graphic registration of the left ventricle in the esophagus (esophagoatriogram). Preliminary report].
D004194:Disease; D004562:Electrocardiography; D004947:Esophagus; D006331:Heart Diseases; D006352:Heart Ventricles; D006801:Humans; D008943:Mitral Valve
ELECTROCARDIOGRAPHY; MITRAL VALVE/diseases