Management of chronic bronchitis.
D000397:Air Pollution; D000667:Ampicillin / Q000627:therapeutic use; D001991:Bronchitis / Q000150:complications / Q000188:drug therapy / Q000382:microbiology / Q000401:mortality / Q000628:therapy*; D001993:Bronchodilator Agents / Q000627:therapeutic use; D002908:Chronic Disease; D006192:Haemophilus Infections / Q000188:drug therapy; D006193:Haemophilus influenzae; D006801:Humans; D026741:Physical Therapy Modalities; D011086:Polycythemia / Q000628:therapy; D011660:Pulmonary Heart Disease / Q000209:etiology / Q000628:therapy; D012129:Respiratory Function Tests; D012907:Smoking; D013752:Tetracycline / Q000627:therapeutic use
D001993:Bronchodilator Agents; D000667:Ampicillin; D013752:Tetracycline