title: Schistosoma mansoni distribution in Ethiopia: a study in medical geography.
mesh_terms: D000531:Altitude; D001700:Biomphalaria / Q000469:parasitology; D002648:Child; D005002:Ethiopia; D006801:Humans; D012550:Schistosoma mansoni; D012552:Schistosomiasis / Q000453:epidemiology* / Q000635:transmission