[Comparative electrocardiographic and vectorcardiographic studies in chronic pulmonary heart syndrome].
D003935:Diagnostic Techniques, Cardiovascular; D004562:Electrocardiography; D006321:Heart; D006801:Humans; D011660:Pulmonary Heart Disease / Q000175:diagnosis*; D014672:Vectorcardiography
ELECTROCARDIOGRAPHY; PULMONARY HEART DISEASE/diagnosis; VECTORCARDIOGRAPHY