title: [Basic epidemiologic methods].
mesh_terms: D004812:Epidemiologic Methods; D005500:Follow-Up Studies / Q000379:methods; D006801:Humans; D008403:Mass Screening / Q000379:methods; D009369:Neoplasms / Q000453:epidemiology; D012189:Retrospective Studies
vernacular_title: Epidemiologian perusmenetelmät