title: Field studies on the bionomics of the free-living stages of St. Lucian Schistosoma mansoni.
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000469:parasitology; D005618:Fresh Water; D005843:Geography; D011891:Rain; D012550:Schistosoma mansoni / Q000502:physiology*; D014900:West Indies