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| Type | Number | (%) |
|---|---|---|
| Normal | 383 | 59.3 |
| Cardiomegaly | 149 | 23.1 |
| Chronic pulmonary disease signs* | 74 | 11.5 |
| Others | 48 | 7.5 |
Total number of chest X-rays performed was 646: not all patients underwent X-ray examination;
hyperinflation, abnormal diaphragm curvature, bullae and airway wall thickening.
