The treatment of chronic bronchitis.
D000900:Anti-Bacterial Agents; D001991:Bronchitis; D029481:Bronchitis, Chronic; D005492:Folic Acid; D010406:Penicillins; D013752:Tetracycline; D014803:Vitamin B Complex
D000900:Anti-Bacterial Agents; D010406:Penicillins; D014803:Vitamin B Complex; D005492:Folic Acid; D013752:Tetracycline
BRONCHITIS; PENICILLIN; TETRACYCLINE; VITAMIN B COMPLEX