title: Interpretation and analysis of differential exposure variability and zero-exposure categories for continuous exposures.
authors.affiliation: Department of Epidemiology, UCLA School of Public Health 90095-1772, USA.
authors.forename: S
authors.initials: S
authors.lastname: Greenland
authors.forename: C
authors.initials: C
authors.lastname: Poole
mesh_terms: D016022:Case-Control Studies; D003627:Data Interpretation, Statistical; D004812:Epidemiologic Methods; D006801:Humans; D010190:Pancreatic Neoplasms / Q000453:epidemiology / Q000209:etiology; D012907:Smoking / Q000009:adverse effects; D014028:Tobacco Smoke Pollution / Q000009:adverse effects
chemical_list: D014028:Tobacco Smoke Pollution