RT Journal Article SR Electronic T1 Cricothyrotomy pig model flawed JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 623 OP 623 DO 10.1136/emj.2008.071183 VO 26 IS 8 A1 Kulkarni, N V YR 2009 UL http://emj.bmj.com/content/26/8/623.2.abstract AB