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Most frequent clinical symptoms [1]
| Swallowing disorders (50%) | Aspiration and cyanosis during feeding (53 to 80%) Chronic cough (27 to 35%) |
|---|---|
| Pharynx and larynx (43%) | Stridor (10 to 60%) Toneless or weak cry (16%) Pharyngeal hypersecretions (10 to 23%) |
| Respiratory (37%) | Recurrent pneumonia (16 to 54%) Respiratory distress at birth |
