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Allen TK, Jones CA, Habib AS.Allen TK, et al. Among authors: habib as.Anesth Analg. 2012 Apr;114(4):813-22. doi: 10.1213/ANE.0b013e318247f628. Epub 2012 Feb 17.Anesth Analg. 2012.PMID: 22344239Review.