title: The U vector loop in normal and various abnormal states as studied by the summation method.
mesh_terms: D000200:Action Potentials; D000787:Angina Pectoris / Q000175:diagnosis*; D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000175:diagnosis* / Q000503:physiopathology; D006332:Cardiomegaly / Q000175:diagnosis*; D003936:Diagnosis, Computer-Assisted; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D014672:Vectorcardiography / Q000379:methods*; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis*