1 ﹒王家良,刘鸣.循证医学.北京:人民卫生出版社,2001.2 ﹒ Matthias Egger,GeorgeD avey Smith,DouglasG ﹒ Alt man ﹒ Systematic Reviewsin Health Care:Meta‐analysisin context ﹒ Second edition,London:BMJ PublishingG roup,2001.6 ﹒ Hunt DL,McKibbon KA ﹒ Locatinga nda ppraising systemat ......