Studies on the incidence of lungworm (Dictyocaulus viviparus, Bloch, 1782) in Quebec cattle.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004022:Dictyocaulus Infections / Q000453:epidemiology*; D008174:Lung Diseases, Parasitic / Q000453:epidemiology / Q000662:veterinary*; D011792:Quebec