title: [2 types of additivity in the combined action of harmful substances: definition of the concept and evaluation methods].
authors.forename: B M
authors.initials: BM
authors.lastname: Shtabskiĭ
authors.forename: V I
authors.initials: VI
authors.lastname: Fedorenko
mesh_terms: D014116:Toxicology
vernacular_title: O dvukh vidakh additivnosti kombinirovannogo deĭstviia vrednykh veshchestv: opredelenie poniatiĭ i sposoby otsenki.