title: Significance of T1 less than T3 when R1 is greater than R3 in Einthoven's three lead electrocardiogram: an historical note.
abstract: This paper reviews the historical development and the significance of T-wave amplitudes in leads I and III in 1000 electrocardiograms of healthy, fit young men at the beginning of their training in the Commonwealth Aircrew Training Program of the Royal Canadian Airforce. It was found that only two of the 1000 electrocardiograms studied showed a pattern of T1 less than T3 with R1 greater than R3; consequently this was regarded as an abnormal finding.
authors.affiliation: University of Western Ontario, London.
authors.forename: G W
authors.initials: GW
authors.lastname: Manning
mesh_terms: D000328:Adult; D002170:Canada; D006332:Cardiomegaly / Q000266:history; D004562:Electrocardiography / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008889:Military Personnel; D010809:Physical Fitness