Studies on the larval development of Schistosoma mansoni in different species of snails hosts.
D000818:Animals; D001700:Biomphalaria; D002033:Bulinus; D004199:Disease Vectors; D007814:Larva / Q000254:growth & development; D012550:Schistosoma mansoni / Q000254:growth & development*; D012908:Snails