title: Schistosomatium douthitti (Cort, 1914) Price, 1929 in a porcupine (Erethizon dorsatum) in eastern Ontario, Canada.
mesh_terms: D000818:Animals; D008297:Male; D009864:Ontario; D012376:Rodent Diseases / Q000453:epidemiology*; D012377:Rodentia; D012552:Schistosomiasis / Q000453:epidemiology / Q000662:veterinary*