text: Age, season of the year, immunization, cigarette smoking, and occupational or air pollutants, may predispose an individual to bronchitis.
option_0: Bronchitis risk factors
option_1: Bronchiectasis risk factors
option_2: Bronchiolitis risk factors
option_3: Acute bronchitis risk factors
option_4: Chronic bronchitis risk factors
option_5: Tracheitis risk factors
option_6: Bronchitis causes
option_7: Pneumoconiosis risk factors