title: [Hygienic optimization of working conditions and environmental protection].
mesh_terms: D004781:Environmental Exposure; D004782:Environmental Health; D006801:Humans; D009787:Occupational Medicine / Q000639:trends*; D014586:USSR
vernacular_title: Gigienicheskaia optimizatsiia usloviĭ truda i okhrana okruzhaiushcheĭ sredy.