Comparison between broad-spectrum and narrow-spectrum antibiotics in upper respiratory infections.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010406:Penicillins / Q000627:therapeutic use*; D012141:Respiratory Tract Infections / Q000188:drug therapy*; D013752:Tetracycline / Q000627:therapeutic use*
D010406:Penicillins; D013752:Tetracycline