[Hygienic characterisics of the working conditions and the pneumoconiosis morbidity of workers engaged in the production of ballast for railroads].
D000328:Adult; D004391:Dust; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D007623:Kazakhstan; D007707:Kyrgyzstan; D008297:Male; D008875:Middle Aged; D008906:Mining; D009787:Occupational Medicine; D011009:Pneumoconiosis / Q000453:epidemiology*; D011890:Railroads
D004391:Dust
Gigienicheskaia kharakteristika usloviĭ truda i zabolevaemost' pnevmokoniozami rabochikh, zaniatykh v proizvodstve shchebnia dlia zheleznykh dorog.