Assertion: cystic fibrosis's symptom | /r/CreatedBy | asthma
Facets:
Source sentences:
text: These symptoms could be caused by viral bronchiolitis (an inflammation of the small breathing tubes), asthma, pneumonia, or even a dusty, smoky environment.
text: These symptoms could be caused by viral bronchiolitis (an inflammation of the small breathing tubes), asthma, or even a dusty, smoky environment.