1Stem C, Jayasekara R. Interventions to reduce the incidence of falls inolder adult patients in acute care hospitals:a systematic review [J]. JBILibrary of Systematic Review,2009,7(21):941-973.
2The Joanna Briggs Institute. Systematic reviews-the review process,Levelsof evidence[EB/OL].http://www.joannabriggs.edu. au/pubs/approach.php#B.
3Pearson A,Wiechula R,Court A,et al. The JBI model of evidencebasedhealthcare[J]. Int J of Evid Based Healthc ,2005 ,3(8):207-215.
