title: Rapid method to determine the electrocardiographic frontal plane axis.
authors.affiliation: Division of Cardiology, Harper Hospital, Detroit, Michigan 48201.
authors.forename: M D
authors.initials: MD
authors.lastname: Meissner
authors.forename: A H
authors.initials: AH
authors.lastname: Hakki
authors.forename: A S
authors.initials: AS
authors.lastname: Iskandrian
mesh_terms: D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D008433:Mathematics