title: Bronchitis in the United Kingdom and the United States of America.
mesh_terms: D000368:Aged; D000397:Air Pollution; D001991:Bronchitis / Q000453:epidemiology / Q000401:mortality*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012907:Smoking / Q000150:complications; D006113:United Kingdom; D014481:United States