An illustrated guide to the methods of meta-analysis.
Sutton A J, Abrams K R, Jones D R·Journal of evaluation in clinical practice
Meta-analysis is now accepted as a necessary tool for the evaluation of health care. Such analyses have been carried out in virtually every area of medicine to evaluate a wide spectrum of health care interventions and policies. This paper has three broad aims: (1) to describe the basic principles of meta-analysis, usin…