Columbia subject headings:
Intellectual property--Brazil.
Intellectual property--United States.
Patent medicines--Law and legislation.
Harvard subject headings:
Brazil--Relations--United States.
Drugs--Brazil--Patents.
Drugs--Patents.
Intellectual property (International law)
Intellectual property--Brazil.
Intellectual property--United States.
Patent laws and legislation--Brazil.
Patent medicines--Law and legislation
United States--Relations--Brazil.
Princeton subject headings:
Brazil--Relations--United States.
Drugs--Patents.
Intellectual property--Brazil.
Patent laws and legislation--Brazil.
Patents.
United States--Relations--Brazil.