title: Tetracycline and co-trimoxazole in acute exacerbations of chronic bronchitis.
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D001991:Bronchitis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D005260:Female; D005493:Folic Acid Antagonists / Q000008:administration & dosage*; D006193:Haemophilus influenzae / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D011743:Pyrimidines / Q000008:administration & dosage*; D013183:Sputum / Q000187:drug effects / Q000382:microbiology; D013291:Streptococcus / Q000187:drug effects; D013420:Sulfamethoxazole / Q000008:administration & dosage* / Q000627:therapeutic use; D013752:Tetracycline / Q000008:administration & dosage* / Q000627:therapeutic use; D014295:Trimethoprim / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D000900:Anti-Bacterial Agents; D005493:Folic Acid Antagonists; D011743:Pyrimidines; D014295:Trimethoprim; D013752:Tetracycline; D013420:Sulfamethoxazole