TY - JOUR T1 - Correction JF - Emergency Medicine Journal JO - Emerg Med J SP - 859 LP - 859 DO - 10.1136/emermed-2011-200468corr1 VL - 29 IS - 10 A2 - , Y1 - 2012/10/01 UR - http://emj.bmj.com/content/29/10/859.1.abstract N2 - Calder A L, Forster J A, Stiell G I et al … ER -