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Ryerson CJ, Hartman T, Elicker BM, Ley B, Lee JS, Abbritti M, Jones KD, King TE Jr, Ryu J, Collard HR.Ryerson CJ, et al.Chest. 2013 Jul;144(1):234-240. doi: 10.1378/chest.12-2403.Chest. 2013.PMID: 23370641