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Defend Earth from alien invaders
treatment of malignancies, infections, and other diseases with chemical agents to destroy selected cells or impair their ability to reproduce
treatment of neoplastic disease using ionizing radiation to impede the proliferation of malignant cells
stereotactic or stereotaxic radiosurgery
radiation treatment to inactive malignant lesions using multiple, precise external radiation beams focused on a target with the aid of stereotactic framed imaging such as CT, MRI, or angiography; used to treat inoperable brain tumors and other lesion
stereotactic or stereotaxic frame
mechanical device used to localize a point space, targeting a precise site
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