title: [Epidemiologic research on cancer. The importance of population-based studies].
authors.forename: Jón Gunnlaugur
authors.initials: JG
authors.lastname: Jónasson
mesh_terms: D016021:Epidemiologic Studies; D006801:Humans; D007055:Iceland / Q000453:epidemiology; D009369:Neoplasms / Q000453:epidemiology*; D012494:Sampling Studies