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Hardin SR, Bernhardt-Tindal K, Hart A, Stepp A, Henson A.Hardin SR, et al.Dimens Crit Care Nurs. 2011 Jan-Feb;30(1):53-61. doi: 10.1097/DCC.0b013e3181fd03a0.Dimens Crit Care Nurs. 2011.PMID: 21135614