CHRONIC BRONCHITIS.
D001991:Bronchitis; D029481:Bronchitis, Chronic; D002965:Classification; D003933:Diagnosis; D004813:Epidemiology; D006801:Humans; D012129:Respiratory Function Tests; D013812:Therapeutics
BRONCHITIS; CLASSIFICATION; DIAGNOSIS; EPIDEMIOLOGY; RESPIRATORY FUNCTION TESTS; REVIEW; THERAPEUTICS