[Factors effecting morbidity of angina among mechanical workers in agriculture and methods of lowering it].
D000383:Agriculture; D006801:Humans; D007827:Laryngitis / Q000517:prevention & control*; D009017:Morbidity; D009784:Occupational Diseases / Q000517:prevention & control*
LARYNGITIS/prevention and control; OCCUPATIONAL DISEASES/prevention and control
Faktory, vliiaiushchie na zabolevaemost'anginoi sredi mekhanizatorov sel'skogo khoziaistva i mery po snizheniiu ee.