RT Journal Article SR Electronic T1 Image of the month: A misleading chest X-ray – not all opacification is effusion JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 556 OP 557 DO 10.7861/clinmedicine.14-5-556 VO 14 IS 5 A1 Ioannis Psallidas A1 John P Corcoran A1 Robert J Hallifax A1 Najib M Rahman YR 2014 UL http://www.rcpjournals.org/content/14/5/556.abstract