RT Journal Article SR Electronic T1 CARDIOLOGY 3rd EDITION JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 436 OP 436 VO 29 IS 204 A1 John Drummond YR 1979 UL http://bjgp.org/content/29/204/436.1.abstract AB