title: Role of infection in the cause and course of chronic bronchitis and emphysema.
mesh_terms: D000367:Age Factors; D000397:Air Pollution; D000667:Ampicillin / Q000627:therapeutic use; D001991:Bronchitis / Q000188:drug therapy / Q000209:etiology* / Q000235:genetics / Q000473:pathology; D002512:Cephalothin / Q000627:therapeutic use; D002701:Chloramphenicol / Q000627:therapeutic use; D002908:Chronic Disease; D004359:Drug Therapy, Combination; D004646:Emphysema / Q000209:etiology*; D004781:Environmental Exposure; D008449:Maximal Expiratory Flow-Volume Curves; D009174:Mycoplasma / Q000302:isolation & purification; D012136:Respiratory Syncytial Viruses / Q000302:isolation & purification; D012141:Respiratory Tract Infections / Q000150:complications* / Q000382:microbiology; D012229:Rhinovirus / Q000302:isolation & purification; D012907:Smoking; D013420:Sulfamethoxazole / Q000627:therapeutic use; D013752:Tetracycline / Q000627:therapeutic use; D014295:Trimethoprim / Q000627:therapeutic use; D014505:Urban Population
chemical_list: D002701:Chloramphenicol; D000667:Ampicillin; D014295:Trimethoprim; D013752:Tetracycline; D013420:Sulfamethoxazole; D002512:Cephalothin