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