title: Studies on the biology of the life cycle of Cotylurus flabelliformis (Trematoda: Strigeidae).
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000453:epidemiology*; D001717:Birds; D002940:Circadian Rhythm; D004372:Ducks; D004463:Ecology; D007484:Iowa; D007814:Larva / Q000254:growth & development; D008974:Mollusca; D012621:Seasons; D012908:Snails; D014200:Trematoda / Q000254:growth & development*; D014201:Trematode Infections / Q000662:veterinary*