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Rycroft-Malone J, Kitson A, Harvey G, McCormack B, Seers K, Titchen A, Estabrooks C.Rycroft-Malone J, et al.Qual Saf Health Care. 2002 Jun;11(2):174-80. doi: 10.1136/qhc.11.2.174.Qual Saf Health Care. 2002.PMID: 12448812Free PMC article.