A person claims her newly invented device treats cancer without surgery,medication,or other forms of conventional medical therapy.However,people who have used the device report that it was not helpful,and it may have harmed them.According to this information,the inventor's claims and her device are

Question

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The inventor's claims of treating cancer without conventional therapy and the reports of harm to users suggest that the device is quackery, meaning it is a fraudulent or deceptive practice.

A Person Claims Her Newly Invented Device Treats Cancer Without