title: [Concept of the nature of combined action as a basis for hygienic evaluation].
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D000818:Animals; D001554:Benzene / Q000633:toxicity; D004305:Dose-Response Relationship, Drug; D004357:Drug Synergism; D051381:Rats; D013997:Time Factors
chemical_list: D000393:Air Pollutants; D001554:Benzene
vernacular_title: O poniatii "kharakter kombinirovannogo deĭstviia" kak osnove gigienicheskoĭ otsenki.