Table 2 EGFR mutational status in plasma DNA samples
From: Detection of EGFR mutations in circulating free DNA by PNA-mediated PCR clamping
| Â | Positive | Negative |
|---|---|---|
| Â | EGFR mutation | EGFR mutation |
|  | (n = 10) | (n = 50) |
Exon 19 deletion | 7 (70.0%) | - |
Exon 21 point mutation | 3 (30.0%) | - |