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Eley VA, Christensen R, Ryan R, Jackson D, Parker SL, Smith M, van Zundert AA, Wallis SC, Lipman J, Roberts JA.Eley VA, et al.Anesth Analg. 2020 Jul;131(1):199-207. doi: 10.1213/ANE.0000000000004766.Anesth Analg. 2020.PMID: 32250982
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Hedberg SE, Fowler DL, Ryan RL.Hedberg SE, et al. Among authors: ryan rl.Am J Surg. 1982 Apr;143(4):426-31. doi: 10.1016/0002-9610(82)90191-x.Am J Surg. 1982.PMID: 6978620