RT Journal Article SR Electronic T1 The PEP transducer. JF Journal of Accident & Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 313 OP 313 DO 10.1136/emj.16.4.313-b VO 16 IS 4 A1 A Breakell A1 C Townsend-Rose YR 1999 UL http://emj.bmj.com/content/16/4/313.3.abstract AB