Khan KS, Kunz R, Kleijnen J, et al. Systematic reviews to support evidence-based medicine: How to review and apply findings of healthcare research. London: Royal Society of Medicine Press, 2003.
Khan KS, Kunz R, Kleijnen J, et al. Systematic reviews to support evidence-based medicine: How to review and apply findings of healthcare research. London: Royal Society of Medicine Press, 2003.