[Improvement of medical control in occupational hygiene].
D000397:Air Pollution / Q000517:prevention & control; D004787:Environmental Pollution / Q000517:prevention & control*; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control; D009787:Occupational Medicine / Q000592:standards*; D014586:USSR
Sovershenstvovanie sanitarnogo nadzora po gigiene truda.