title: The effect of oral tetracycline HCl and doxycycline on the intestinal flora.
mesh_terms: D000284:Administration, Oral; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000494:pharmacology*; D005243:Feces / Q000382:microbiology; D006801:Humans; D007422:Intestines / Q000382:microbiology*; D008826:Microbial Sensitivity Tests; D009279:Naphthacenes / Q000008:administration & dosage / Q000494:pharmacology*; D013752:Tetracycline / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D009279:Naphthacenes; D013752:Tetracycline