title: Clarification on the guidelines for recombinant DNA experiments with genes coding for toxins for vertebrates.
mesh_terms: D000818:Animals; D004274:DNA, Recombinant; D009316:National Institutes of Health (U.S.); D012107:Research Design / Q000592:standards*; D014118:Toxins, Biological / Q000235:genetics*; D014481:United States
chemical_list: D004274:DNA, Recombinant; D014118:Toxins, Biological