title: P mitrale-P pulmonale variation.
authors.forename: I
authors.initials: I
authors.lastname: Malcolm
mesh_terms: D006332:Cardiomegaly / Q000175:diagnosis*; D004562:Electrocardiography; D006325:Heart Atria; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis