On the variability in morphology and anatomy of the planorbid snails in Egypt (U.A.R.) with special reference to snail intermediate hosts of Schistosoma mansoni.
D000818:Animals; D004534:Egypt; D006372:Helix, Snails; D006801:Humans; D012550:Schistosoma mansoni; D012552:Schistosomiasis / Q000635:transmission*; D012908:Snails
SCHISTOSOMIASIS/transmission; SNAILS