RT Journal Article SR Electronic T1 Critical Care Medicine. The Essentials. 4th Edition. JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 169 OP 169 VO 19 IS 116 A1 L.C. Price A1 J.R. Dick YR 2010 UL http://err.ersjournals.com/content/19/116/169.abstract AB