Tetracycline 500 Mg b.i.d. A clinical evaluation.
D005260:Female; D006801:Humans; D007239:Infections / Q000188:drug therapy; D008297:Male; D012141:Respiratory Tract Infections / Q000188:drug therapy*; D013752:Tetracycline / Q000008:administration & dosage*
D013752:Tetracycline