title: Comparative trial of co-trimoxazole and tetracycline in the treatment of lower respiratory tract infections.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004338:Drug Combinations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012141:Respiratory Tract Infections / Q000188:drug therapy*; D013420:Sulfamethoxazole / Q000627:therapeutic use*; D013752:Tetracycline / Q000627:therapeutic use*; D014295:Trimethoprim / Q000627:therapeutic use*
chemical_list: D004338:Drug Combinations; D014295:Trimethoprim; D013752:Tetracycline; D013420:Sulfamethoxazole