RT Journal Article SR Electronic T1 CLINICAL VALUE OF UNIPOLAR CHEST AND LIMB LEADS JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 9 OP 25 DO 10.1136/hrt.10.1.9 VO 10 IS 1 A1 Bain, C. W. Curtis A1 Redfern, E. McV. YR 1948 UL http://heart.bmj.com/content/10/1/9.abstract AB