RT Journal Article SR Electronic T1 Imaging of massive pulmonary embolism JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 111 OP 111 DO 10.1136/heart.88.1.111-a VO 88 IS 1 A1 N Haenen A1 D Odekerken A1 W Jaarsma YR 2002 UL http://heart.bmj.com/content/88/1/111.2.abstract AB