catheter                Meta-analysis of antibacterial catheter coating 
cochrane                Data for Cochrane Collaboration logo 
funnelplot              Funnel plot for publication bias
meta.DSL                Random effects (DerSimonian-Laird)
                        meta-analysis
meta.MH                 Fixed effects (Mantel-Haenszel) meta-analysis
meta.cum		Cumulative meta-analysis
meta.colors             Control colours in meta-analysis plot
meta.summaries          Meta-analysis based on effect estimates
metaplot                Confidence interval plot