title: Changes in the NIH Guidelines for Recombinant DNA Research (Appendix 3: September 1979--April 1980).
mesh_terms: D003001:Cloning, Molecular; D003264:Containment of Biohazards / Q000592:standards*; D004274:DNA, Recombinant; D005822:Genetic Vectors; D009316:National Institutes of Health (U.S.); D012106:Research; D014481:United States
chemical_list: D004274:DNA, Recombinant