title: Silica exposure and silicosis among Ontario hardrock miners: I. Methodology.
abstract: An epidemiological investigation was undertaken to determine the relationship between silicosis in hardrock miners in Ontario and cumulative exposure to silica (crystalline silica--alpha quartz) dust. This first report describes the cohort, the method of classifying the radiographs, and the identification of a case of silicosis.
authors.affiliation: Occupational Health Program, McMaster University, Hamilton, Ontario, Canada.
authors.forename: D C
authors.initials: DC
authors.lastname: Muir
authors.forename: H S
authors.initials: HS
authors.lastname: Shannon
authors.forename: J A
authors.initials: JA
authors.lastname: Julian
authors.forename: D K
authors.initials: DK
authors.lastname: Verma
authors.forename: A
authors.initials: A
authors.lastname: Sebestyen
authors.forename: C D
authors.initials: CD
authors.lastname: Bernholz
mesh_terms: D015331:Cohort Studies; D006801:Humans; D008906:Mining; D009864:Ontario; D012829:Silicosis / Q000175:diagnosis / Q000453:epidemiology*