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Types of cytological specimen under the study group
| Nature of specimen | Total number (n) | Percentage (%) |
|---|---|---|
| Sputum | 8 | 0.73 |
| BW | 312 | 28.76 |
| BB | 83 | 7.65 |
| FNA | 376 | 34.65 |
| CB | 306 | 28.20 |
| Total | 1085 | 100 |
BB - Bronchial brushing, BW - Bronchial washing, CB - Cell block, FNA - Fine needle aspiration
