title: The incidence of Balantidium coli among local and exotic pigs in Ibadan, Nigeria.
mesh_terms: D000367:Age Factors; D000818:Animals; D001447:Balantidiasis / Q000453:epidemiology / Q000662:veterinary*; D009549:Nigeria; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*