The health of Canadian grain workers.
D000382:Agricultural Workers' Diseases / Q000209:etiology*; D004391:Dust; D002523:Edible Grain / Q000009:adverse effects*; D006801:Humans; D009784:Occupational Diseases / Q000209:etiology*; D012140:Respiratory Tract Diseases / Q000209:etiology*
D004391:Dust