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Howell SJ, Pandit JJ, Rowbotham DJ; Research Council of the National Institute of Academic Anaesthesia (NIAA).Howell SJ, et al.Br J Anaesth. 2012 Jan;108(1):42-52. doi: 10.1093/bja/aer418.Br J Anaesth. 2012.PMID: 22157447Free article.