RT Journal Article SR Electronic T1 Magnetic resonance direct thrombus imaging was accurate in suspected deep venous thrombosis JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 126 OP 126 DO 10.1136/ebm.7.4.126 VO 7 IS 4 YR 2002 UL http://ebm.bmj.com/content/7/4/126.abstract AB