RT Journal Article SR Electronic T1 New directions in anticoagulant and antiplatelet treatment JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 426 OP 426 DO 10.1136/hrt.75.4.426-a VO 75 IS 4 A1 J R O'Brien YR 1996 UL http://heart.bmj.com/content/75/4/426.2.abstract AB