title: Loop logic: an introduction to vectorcardiography.
mesh_terms: D002037:Bundle-Branch Block / Q000175:diagnosis; D006332:Cardiomegaly / Q000175:diagnosis; D004562:Electrocardiography; D005069:Evaluation Studies as Topic; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis; D014672:Vectorcardiography; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis