Meta-regression

Dear all,

I'm running a meta-regression but, as a newbie, I'm facing few problems to
interpret the outputs from metareg.

I wonder if you can inform some literature where I can find how to
understand and interpret the meta-regression analysis from R.

These are the books/papers I have, but they are not very helpful:

*Introduction to Meta-Analysis [Borenstein]
*Meta-Analysis with R [Guido Schwarzer]
*How should meta-regression analyses be undertaken and interpreted?
[Thompson and Higgins]
*Conducting Meta-Analyses in R with the metafor Package [Wolfgang
Viechtbauer]

Do you have anything different, with examples?

Thank you in advance!

BW

Carlos.