[Industrial hygiene in the chemical industry of the USSR during the past 50 years].
D002617:Chemical Industry / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D009787:Occupational Medicine / Q000266:history*; D014586:USSR
Gigiena truda v khimicheskoĭ promyshlennosti USSR za 50 let.