The incidence of lungworm infection in sheep in North-East England.
D000818:Animals; D004022:Dictyocaulus Infections / Q000453:epidemiology / Q000473:pathology; D004739:England; D005243:Feces / Q000382:microbiology; D008168:Lung / Q000473:pathology; D008174:Lung Diseases, Parasitic / Q000662:veterinary; D009349:Nematode Infections / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000473:pathology