RT Journal Article SR Electronic T1 Use of the Asherman chest seal as a stabilisation device for needle thoracostomy JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 590 OP 591 DO 10.1136/emj.19.6.590 VO 19 IS 6 A1 K Allison A1 K M Porter A1 A M Mason YR 2002 UL http://emj.bmj.com/content/19/6/590.abstract AB