Assertion: chronic bronchitis | /r/CreatedBy | cystic fibrosis
Facets:
value: on occasion
type: TEMPORAL
Source sentences:
text: On occasion, chronic bronchitis can also be caused by underlying disease processes such as cystic fibrosis, asthma, congestive heart failure, immunodeficiency, acquired or congenital dilation of the bronchioles, or familial genetic predisposition to bronchitis.