title: A winter-long trial of ampicillin in chronic bronchitis.
mesh_terms: D000367:Age Factors; D000368:Aged; D000667:Ampicillin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy* / Q000382:microbiology; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005260:Female; D006193:Haemophilus influenzae; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012621:Seasons; D012737:Sex Factors; D013183:Sputum; D013492:Suppuration; D013997:Time Factors
chemical_list: D000667:Ampicillin