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International Journal of Epidemiology|August 3, 2000
An introduction to instrumental variables for epidemiologistsS Greenland
Epidemiology (Cambridge, Mass.)|November 1, 1990
Randomization, statistics, and causal inferenceS Greenland
Nursing Standard (Royal College of Nursing (Great Britain) : 1987)|May 3, 1995
Pain management: a review of the uses of epidural analgesiaS Greenland
International Journal of Epidemiology|December 1, 1996
Basic methods for sensitivity analysis of biasesS Greenland
American Journal of Epidemiology|October 1, 1980
The effect of misclassification in the presence of covariatesS Greenland
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