catheter                Data: antibacterial catheter coating 
cochrane                Data: Cochrane Collaboration logo 

meta.DSL                Random effects (DerSimonian-Laird) meta-analysis
meta.MH                 Fixed effects (Mantel-Haenszel) meta-analysis
meta.summaries          Meta-analysis based on effect estimates

metaplot                Confidence interval (forest) plot
funnelplot              Funnel plot for publication bias
meta.colors             Control colours in meta-analysis plot

cummeta			Cumulative meta-analysis
cummeta.summaries	Cumulative meta-analysis