Changes in the NIH guidelines for recombinant DNA research (appendix 4: May 1980--April 1981).
D003001:Cloning, Molecular / Q000379:methods*; D003264:Containment of Biohazards / Q000592:standards*; D004274:DNA, Recombinant; D009316:National Institutes of Health (U.S.); D014481:United States
D004274:DNA, Recombinant