RT Journal Article SR Electronic T1 Thrombolysis for submassive pulmonary embolism JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 72 OP 72 DO 10.1136/thorax.58.1.72 VO 58 IS 1 A1 T A R Seemungal YR 2003 UL http://thorax.bmj.com/content/58/1/72.abstract AB