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Cohort assembly. Overall, sequencing results from 148 cell-free DNA (cfDNA) samples from 137 patients were compared with those of genomic DNA (gDNA) from matched cerebrospinal fluid (CSF) cell pellet and/or previously characterized formalin-fixed, paraffin-embedded (FFPE) tumor. n = 126 results of gDNA from matched CSF cell pellet; n = 100 results of previously characterized FFPE tumor.
