RT Journal Article SR Electronic T1 Retrieval of left atrial catheters with a mediastinoscope. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 479 OP 480 DO 10.1136/thx.39.6.479-d VO 39 IS 6 A1 P R Behl A1 C J Hilton A1 M P Holden YR 1984 UL http://thorax.bmj.com/content/39/6/479.5.abstract AB