Epidemiological research : terms and concepts 2026-02-16T05:32:30+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Miettinen, Olli S. (Olli Sakari), 1936- (Springer, 2011)