The significance of a notch during the terminal 0.04 second of the QRS complex in an electrocardiogram.
D009202:Cardiomyopathies; D003327:Coronary Disease; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis*; D006352:Heart Ventricles; D008171:Lung Diseases / Q000175:diagnosis*; D009203:Myocardial Infarction