Provitamin Beta-Carotene Kushandisa uye Lung Cancer Njodzi muVaputi

Zvakakosha Zvakawanda zvingangoita mavitamini zvinowedzera se beta-carotene inogona kunge isingagone kubatsira nguva dzose uye inogona kukonzeresa njodzi yekenza yemapapu mune vanoputa varipo uye nevanhu vane nhoroondo yekuputa. Muchidzidzo chikuru chakaongorora kiriniki data yeinopfuura ...