1 US Preventive Services Task Force, "Procedure manual [Inter-net]. Rockville : US Preventive Services Task Force"
2 Kim SY, "National Evidence-based Healthcare Collaborating Agency. NECA's guidance for undertaking systematic reviews and meta-analyses for intervention" National Evidence-based Healthcare Collaborating Agency 2011
3 US Preventive Services Task Force, "Grade definitions [Inter-net]. Rockville : US Preventive Services Task Force"
4 Schunemann H, "GRADE hand-book : introduction to GRADE handbook"
5 Graham R, "Clinical practice guidelines we can trust" National Academies Press 2011
6 Brouwers MC, "AGREE Next Steps Consortium. AGREE II : advancing guideline development, reporting, and evaluation in health care" 51 : 421-424, 2010
1 US Preventive Services Task Force, "Procedure manual [Inter-net]. Rockville : US Preventive Services Task Force"
2 Kim SY, "National Evidence-based Healthcare Collaborating Agency. NECA's guidance for undertaking systematic reviews and meta-analyses for intervention" National Evidence-based Healthcare Collaborating Agency 2011
3 US Preventive Services Task Force, "Grade definitions [Inter-net]. Rockville : US Preventive Services Task Force"
4 Schunemann H, "GRADE hand-book : introduction to GRADE handbook"
5 Graham R, "Clinical practice guidelines we can trust" National Academies Press 2011
6 Brouwers MC, "AGREE Next Steps Consortium. AGREE II : advancing guideline development, reporting, and evaluation in health care" 51 : 421-424, 2010