Antibiotic treatment of acute bronchial infections superimposed on chronic obstructive  pulmonary disease.
D000328:Adult; D000368:Aged; D000667:Ampicillin / Q000627:therapeutic use*; D001424:Bacterial Infections / Q000188:drug therapy* / Q000209:etiology; D001982:Bronchial Diseases / Q000188:drug therapy* / Q000209:etiology; D002986:Clinical Trials as Topic; D004318:Doxycycline / Q000627:therapeutic use*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D008911:Minocycline / Q000627:therapeutic use*; D013754:Tetracyclines / Q000627:therapeutic use*
D013754:Tetracyclines; D000667:Ampicillin; D008911:Minocycline; D004318:Doxycycline