Columbia subject headings:
Genetic engineering--United States--Periodicals.
Microorganisms--United States--Patents--Periodicals.
Recombinant DNA--Research--Law and legislation--United States--Periodicals.
Harvard subject headings:
Genetic engineering--Law and legislation--United States--Periodicals.
Microorganisms--United States--Patents--Periodicals.
Patents.
Recombinant DNA--Research--Law and legislation--United States--Periodicals.
Princeton subject headings: