Site na mmụba nke nrụgide mmekọrịta ọha na eze, ọtụtụ ndị na-eto eto ga-enweta ehighi ura, karịsịa mgbe ohiri isi adịghị mma.Ka ọ dị ugbu a, e nwere ọtụtụ ụdị ohiri isi dị n'ahịa: ohiri isi na-arụ ọrụ, ohiri isi akụkụ, ohiri isi ebe nchekwa, ohiri isi ahụike, ohiri isi cervical, silkworm sand pil ...
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