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| N | Percentage | |
| Number of patients | 442 | 100 |
| Number of biopsies | 474 | |
| Histology | ||
| Adenocarcinoma | 353 | 80 |
| SCC | 27 | 6 |
| Large cell undifferentiated | 42 | 9 |
| Adenosquamous | 7 | 1 |
| Carcinoid | 3 | 1 |
| Salivary gland | 2 | 1 |
| NSCLC-NOS | 8 | 2 |
SCC is squamous cell lung carcinoma. NSCLC-NOS is non-small cell lung cancer – not otherwise specified.
