Book reviews: Leandro G 2005: Meta-analysis in medical research: the handbook for the understanding and practice of meta-analysis. Oxford: Blackwell. 98 + xii pp. and compact disk. GBP 42.50,US$69.95. ISBN 1 405 12733 3

Ruiz-Espejo M. , Singh HP , Singh R. Optimal unbiased linear integration of estimators . Statistics and Decisions 2001; 19: 373—94.

Chappell F. Review of meta-analysis in medical research. Journal of the Royal Statistical Society, Series A 2005; 168: 877—8.