title: Assessing the health impact of total exposure at and off work: methodological problems in occupational epidemiology.
authors.forename: S
authors.initials: S
authors.lastname: Hernberg
mesh_terms: D004781:Environmental Exposure; D004812:Epidemiologic Methods; D006801:Humans; D009784:Occupational Diseases / Q000139:chemically induced* / Q000453:epidemiology