Bias in meta-analysis detected by a simple, graphical test

BMJ - Tập 315 Số 7109 - Trang 629-634 - 1997
Matthias Egger1,2,3, George Davey Smith1,2,3, Martin Schneider1,2,3, C. Minder1,2,3
1Department of Social Medicine, University of Bristol, Bristol BS8 2PR
2professor of clinical epidemiology Department of Social and Preventive Medicine, University of Berne, CH-3012 Berne, Switzerland
3research associate

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