Smoking and chronic respiratory disorders; results of abstinence.
D002908:Chronic Disease; D003371:Cough / Q000628:therapy*; D006801:Humans; D012120:Respiration Disorders; D012137:Respiratory System; D012140:Respiratory Tract Diseases; D012907:Smoking / Q000009:adverse effects*
COUGH/therapy; RESPIRATORY TRACT/diseases; SMOKING/injurious effects