Indication | Group А (n = 17) | Group В (n = 21) | Group С (n = 22) | |
Biopsy | 8 | 11 | 9 | |
Pleural effusion | 4 | 6 | 5 | |
Empyem | 4 | 3 | 6 | |
Spontaneous pneumothorax | 1 | 1 | 2 |