RT Journal Article SR Electronic T1 Cystic Hygroma of the Mediastinum JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 105 OP 115 DO 10.1136/thx.5.2.105 VO 5 IS 2 A1 H. R. S. Harley A1 C. E. Drew YR 1950 UL http://thorax.bmj.com/content/5/2/105.abstract AB