Speakers, printers, modems, network routers and external<span>storage devices are other </span>external<span> devices. is this correct</span>
a positron emission tomography (PET) scan is an imaging test that allows your doctor to check for diseases in your body. The scan uses a special dye containing radioactive tracers. These tracers are either swallowed, inhaled, or injected into a vein in your arm depending on what part of the body is being examined
Benign tumors are not cancerous. Malignant tumors are cancerous.
Benign tumors usually aren't problematic while malignant tumors grow and spread quickly putting you in harms way.
