Assertion: chronic bronchitis | /r/CreatedBy | chemical
Facets:
value: usually
type: DEGREE
Source sentences:
text: Chronic bronchitis lasts longer than acute bronchitis and is caused by environmental irritants such as dust, chemicals, or smoke, the (https://www.mayoclinic.org/diseases-conditions/bronchitis/symptoms-causes/syc-20355566)
text: Chronic bronchitis is not contagious as it is usually caused by environmental factors such as dust, smoke, and chemicals.