title: [Methodological principles for the study of the epidemiology of malignant tumors].
authors.forename: V I
authors.initials: VI
authors.lastname: Dolgintsev
mesh_terms: D001695:Biology; D004812:Epidemiologic Methods; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology*; D012961:Sociology
vernacular_title: Metodologicheskie printsipy izucheniia épidemiologii zlokachestvennykh opukholeĭ.