1. Meta-analysis of randomized control trials;Sacks;N Engl J Med,1987
2. Tc Chalmers, H. Levin, Hs Sacks, D. Reitman, J. Bemer, R. Nagalingam, Meta-analysis of clinical trials as a scientific discipline II: Replicate variability and comparison of studies that agree and disagree, Statistics Med ((in press)).