Colvin L A, Dougherty P M
Department of Anaesthesia, Critical Care and Pain Medicine, University of Edinburgh, Western General Hospital, Crewe Rd, Edinburgh EH4 2XU, UK
Department of Anesthesiology and Pain Management, The University of Texas M.D. Anderson Cancer Center, 1400 Holcombe Boulevard Unit 409, Houston, TX 77030, USA.
Br J Anaesth. 2015 Mar;114(3):361-3. doi: 10.1093/bja/aeu323. Epub 2014 Sep 24.