9Rotter T, Kugler J, Koch R,et al.A systematic review and meta-analysis of the effects of clinical pathways on length of stay,hospital costs and patient outcomes[J].BMC Health Serv Res, 2008,8 : 265.
10Rosenberg W, Donald A.Evidence based medicine :an ap- proach to clinical problem-solving[J].BMJ, 1995,310 (6987) : 1122-1126.