Methacycline, a new antibiotic in the treatment of infections of the respiratory tract.
D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008690:Methacycline / Q000627:therapeutic use; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000188:drug therapy*
D000900:Anti-Bacterial Agents; D008690:Methacycline