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Waters JH, Lee JS, Klein E, O'Hara J, Zippe C, Potter PS.Waters JH, et al.Anesth Analg. 2004 Feb;98(2):537-542. doi: 10.1213/01.ANE.0000096193.49714.92.Anesth Analg. 2004.PMID: 14742402Clinical Trial.
Esper SA, Levy JH, Waters JH, Welsby IJ.Esper SA, et al. Among authors: waters jh.Anesth Analg. 2014 Apr;118(4):731-43. doi: 10.1213/ANE.0000000000000115.Anesth Analg. 2014.PMID: 24651227Review.