Lemma, A The epidemiology of Schistosoma mansoni infection in Tensae Berhan, Ethiopia: prevalence of schistosomiasis. [electronic resource] - Ethiopian medical journal Jul 1979 - 63-74 p. digital Publication Type: Journal Article ISSN: 0014-1755 Subjects--Topical Terms: AdolescentAdultAgedChildChild, PreschoolEthiopiaFemaleHumansInfantMaleMiddle AgedSchistosoma mansoni--isolation & purificationSchistosomiasis--epidemiologySnails--parasitology