I want to know the answer to the following question:
What are some other causes of airway obstruction?
All the background I'm provided with is that "In children, other upper airway diseases such as allergic rhinitis and sinusitis should be considered as well as other causes of airway obstruction including: foreign body aspiration, tracheal stenosis or laryngotracheomalacia, vascular rings, enlarged lymph nodes or neck masses.". Is that enough to answer the question?