RT Journal Article SR Electronic T1 Pericardial effusion – forgotten differential diagnosis of shortness of breath JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 519 OP 519 DO 10.7861/clinmedicine.10-5-519a VO 10 IS 5 A1 Pankaj Garg YR 2010 UL http://www.rcpjournals.org/content/10/5/519.2.abstract