Weinberg, C R Imputation for exposure histories with gaps, under an excess relative risk model. [electronic resource] - Epidemiology (Cambridge, Mass.) Sep 1996 - 490-7 p. digital Publication Type: Journal Article ISSN: 1044-3983 Subjects--Topical Terms: Environmental ExposureEpidemiologic MethodsHumansModels, StatisticalRadonRisk