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Statistics in Medicine|March 4, 1998
Variation in baseline risk as an explanation of heterogeneity in meta-analysisS D WalterAmerican Journal of Epidemiology|September 15, 1992
The analysis of regional patterns in health data. I. Distributional considerationsS D WalterAmerican Journal of Epidemiology|September 15, 1992
The analysis of regional patterns in health data. II. The power to detect environmental effectsS D WalterStatistics in Medicine|January 10, 2002
Number needed to treat (NNT): estimation of a measure of clinical benefitS D WalterBiometrics|December 1, 1976
The estimation and interpretation of attributable risk in health researchS D WalterThe British Journal of Psychiatry : the Journal of Mental Science|October 1, 1977
Seasonality of mania: a reappraisalS D WalterStatistics in Medicine|May 30, 1994
A simple test for spatial pattern in regional health dataS D WalterJournal of Clinical Epidemiology|January 1, 1991
Statistical significance and fragility criteria for assessing a difference of two proportionsS D WalterEnvironmental Health Perspectives|August 1, 1991
The ecologic method in the study of environmental health. I. Overview of the methodS D WalterPageof 40