Assertion: obstruction's cause | /r/HasProperty | upper airway obstruction
Facets:
Source sentences:
text: Our results are also different from the study of Adoga16 in terms of etiology of tracheostomy who found that the causes of tracheostomy were upper airway obstruction (63%), craniofacial trauma(15.2%), prolonged intubation (11%),infections (4.3%), head and neck malignancies (4.3%), tracheobroncheal toileting (2.2%).