chung shan medical university
Study: Chewing Betel Quid Linked To Oral Cancer
Chewing betel quid exposes its 600 million users to substances that act as direct carcinogens in the mouth, scientists are reporting in a new study.
Chewing betel quid exposes its 600 million users to substances that act as direct carcinogens in the mouth, scientists are reporting in a new study.
