title: Application of Einthoven's law in calculating mean QRS axis.
authors.forename: M Sajjad
authors.initials: MS
authors.lastname: Athar
authors.forename: P N
authors.initials: PN
authors.lastname: Singh
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D014672:Vectorcardiography / Q000379:methods