RT Journal Article SR Electronic T1 THE ELECTROCARDIOGRAM IN PULMONARY EMBOLISM JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 41 OP 60 DO 10.1136/hrt.20.1.41 VO 20 IS 1 A1 Robert H. Cutforth A1 Samuel Oram YR 1958 UL http://heart.bmj.com/content/20/1/41.abstract AB