Twenty-two patients were included (77% female; median age 60 years). Sixty-four percent had sensitizing EGFR mutations, and 32% had an atypical EGFR mutation. Thirteen of the 22 patients (59%) were ...
Doctors analyze cerebrospinal fluid (CSF) to help identify conditions that affect your brain and spine. CSF samples are typically collected through a lumbar (spinal) tap. CSF is the clear fluid that ...
Cerebrospinal fluid is the liquid around your brain and spinal cord. If a doctor thinks you have an illness that affects your nervous system, they might take a sample for testing. The fluid is made by ...
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