RT Journal Article SR Electronic T1 The Chest Film In Massive Pulmonary Embolism JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 694 OP 694 DO 10.1136/jcp.17.6.694-b VO 17 IS 6 A1 Lloyd, Glyn YR 1964 UL http://jcp.bmj.com/content/17/6/694.2.abstract AB