Full guideline Full guideline (PDF 1.15 MB) Published: 23 February 2011 Full guideline appendix 1 - scope and evidence (PDF 666 KB) Published: 23 February 2011 Full guideline appendix 2 - excluded studies (PDF 292 KB) Published: 23 February 2011 Full guideline appendix 3 - health economics (PDF 444 KB) Published: 23 February 2011 Full guideline appendix 4 - declarations of interest (PDF 17 KB) Published: 23 February 2011 This page was last updated: 23 February 2011