title: The P terminal vector in lead V1 of the electrocardiogram in cor pulmonale.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006332:Cardiomegaly / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006801:Humans; D008297:Male; D008875:Middle Aged; D011660:Pulmonary Heart Disease / Q000503:physiopathology*; D011666:Pulmonary Valve Stenosis / Q000503:physiopathology*