RT Journal Article SR Electronic T1 AN ATLAS OF CARDIOLOGY, ELECTROCARDIOGRAMS AND CHEST X-RAYS JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 313 OP 314 VO 28 IS 190 A1 Stubbings, Clive YR 1978 UL http://bjgp.org/content/28/190/313.4.abstract AB