title: [Significance of minor vectorcardiographic changes (the QRS complex)].
mesh_terms: D000368:Aged; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology; D013997:Time Factors; D014672:Vectorcardiography
vernacular_title: La signification de quelques altérations vectocardiographiques mineures (boucle QRS).