Hukumar lafiya ta duniya ta yi kiyasin cewa dubun-dubatar mutane a fadin duniya ke fama da gudawa a kowace rana, sannan akwai masu kamuwa da gudawa guda biliyan 1.7 a kowace shekara, yayin da miliyan 2.2 ke mutuwa sakamakon tsananin gudawa. Shi kuma CD da UC, mai saukin maimaitawa, mai wahalar warkewa, amma kuma gas din secondary...
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