Levi, F [Epidemiological research on cancer in Switzerland (tumor registries at the 1st level)]. [electronic resource] - Epidemiologia e prevenzione Sep 1990 - 46-8 p. digital Publication Type: News ISSN: 1120-9763 Subjects--Topical Terms: Cohort StudiesHumansNeoplasms--epidemiologyRegistriesSwitzerland--epidemiology