title: The anteriorly oriented horizontal vector loop: the problem of distinction between direct posterior myocardial infarction and normal variation.
mesh_terms: D000792:Angiography; D001794:Blood Pressure; D006328:Cardiac Catheterization; D004562:Electrocardiography; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011651:Pulmonary Artery; D014672:Vectorcardiography