Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Nepo kuwedzerwa kweropa mumapapu kusingawanzoitiki pamberi pamakore 20 ezera, kunoonekwa mu50% yavanhu vanopfuura zera ramakore 40. Kufambira mberi kwechirwere cheEisenmenger kunoitika mu5 kusvika ku10% yevanhu vari kunonoka kurwara.  Mubvunzo: Pavanenge vava kusvika padanho rokuva nechirwere cheEisenmenger, vanhu vangani vanosvika padanho iroro?
5 kusvika ku10%