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