By default, studies are ordered by ascending effect size (sort="asc"). For study ordering by descending
effect size, choose sort="desc". For any other value, study ordering is ignored.
xlim
The x limits (x1, x2) of the forest plot
refline
Optional numeric specifying a reference line
…
Additional parameters for generating forest plots
References
Riley RD, Thompson JR, Abrams KR. An alternative model for bivariate random-effects meta-analysis
when the within-study correlations are unknown. Biostatistics 2008; 9: 172--186.