| Patient’s complaints | Frequency | Percentage (%) |
| None | 97 | 69.3 |
| Cough | 31 | 22.1 |
| Chest pain | 6 | 4.3 |
| Dyspnea | 4 | 2.9 |
| inhalation of foreign body | 2 | 1.4 |
| Total | 140 | 100 |