RT Journal Article SR Electronic T1 Secondary spontaneous pneumothorax: indication for intercostal chest drain insertion? JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 19 OP 19 DO 10.1136/emj.2007.054056 VO 26 IS 1 A1 Lee, D K C YR 2009 UL http://emj.bmj.com/content/26/1/19.abstract AB