title: [Pre- and postoperative electrocardiograms in patients with pectus excavatum. -- P terminal forces in lead V1].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004562:Electrocardiography; D005260:Female; D005660:Funnel Chest / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008297:Male; D011184:Postoperative Period