On the incidence of gastrointestinal parasites in Nova Scotia beaver.
D000818:Animals; D005767:Gastrointestinal Diseases / Q000662:veterinary*; D009349:Nematode Infections / Q000662:veterinary*; D009674:Nova Scotia; D012376:Rodent Diseases / Q000453:epidemiology*; D014201:Trematode Infections / Q000662:veterinary*