title: Invited commentary: on the road to improved exposure assessment using geographic information systems.
authors.affiliation: Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. wardm@exchange.nih.gov
authors.forename: Mary H
authors.initials: MH
authors.lastname: Ward
authors.forename: Daniel
authors.initials: D
authors.lastname: Wartenberg
mesh_terms: D004781:Environmental Exposure / Q000032:analysis*; D004812:Epidemiologic Methods; D040362:Geographic Information Systems; D006801:Humans; D018570:Risk Assessment