Liu JP, Kjaergard LL, Gluud C. Steps and methods of performing systematic reviews. In: Wang J, Gluud C, eds. Evidence-based medicine and clinical practice. Beijing: Science Publisher. 2002: 61-73.
Liu JP, Kjaergard LL, Gluud C. Steps and methods of performing systematic reviews. In: Wang J, Gluud C, eds. Evidence-based medicine and clinical practice. Beijing: Science Publisher. 2002: 61-73. Unfortunately, no direct link available.