Umusaza ni imbuto kuva kera zizwiho inyungu zubuzima.Irashobora gufasha kongera ubudahangarwa, kurwanya umuriro, kurinda umutima, ndetse no kuvura indwara zimwe na zimwe, nk'ibicurane cyangwa ibicurane.Mu binyejana byashize, abasaza ntibakoreshejwe gusa kuvura indwara zisanzwe, ahubwo no mu ...
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