title: Letter: Diagnosis of left anterior hemiblock.
mesh_terms: D003937:Diagnosis, Differential; D004562:Electrocardiography / Q000379:methods*; D006321:Heart / Q000503:physiopathology*; D006327:Heart Block / Q000175:diagnosis*; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans