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Chen KM, Chen MH, Chao HC, Hung HM, Lin HS, Li CH.Chen KM, et al. Among authors: lin hs.Int J Nurs Stud. 2009 Feb;46(2):154-63. doi: 10.1016/j.ijnurstu.2008.09.005. Epub 2008 Oct 22.Int J Nurs Stud. 2009.PMID: 18947826Clinical Trial.