title: Migration and development of Trichobilharzia ocellata (Trematoda: Schistosomatidae) in its duck hosts.
mesh_terms: D000818:Animals; D001715:Bird Diseases; D004372:Ducks; D008124:Locomotion; D008195:Lymnaea; D012547:Schistosoma / Q000254:growth & development*; D012552:Schistosomiasis / Q000662:veterinary*