Research note--incidence of infection by Gastrotaenia cygni (Cestoda: Aporidea) of waterfowl in eastern colorado.
D000818:Animals; D002590:Cestode Infections / Q000453:epidemiology*; D003120:Colorado; D004372:Ducks; D011201:Poultry Diseases / Q000453:epidemiology*; D011531:Proventriculus