Triple tetracycline in lower respiratory tract infections.
D000293:Adolescent; D000328:Adult; D002751:Chlortetracycline / Q000008:administration & dosage* / Q000627:therapeutic use; D003707:Demeclocycline / Q000008:administration & dosage* / Q000627:therapeutic use; D004338:Drug Combinations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000188:drug therapy*; D013752:Tetracycline / Q000008:administration & dosage* / Q000627:therapeutic use
D004338:Drug Combinations; D003707:Demeclocycline; D013752:Tetracycline; D002751:Chlortetracycline