Columbia subject headings:
Drugs--Developing countries--Patents.
Drugs--Mexico--Patents.
Intellectual property--Developing countries.
Intellectual property--Mexico.
Pharmaceutical industry--Developing countries.
Pharmaceutical industry--Mexico.
Harvard subject headings:
Drugs--Developing countries--Patents.
Drugs--Mexico--Patents.
Intellectual property--Developing countries.
Intellectual property--Mexico.
Pharmaceutical industry--Developing countries.
Pharmaceutical industry--Mexico.
Princeton subject headings:
Drugs--Developing countries--Patents.
Drugs--Mexico--Patents.
Intellectual property--Developing countries.
Intellectual property--Mexico.
Patents.
Pharmaceutical industry--Developing countries.
Pharmaceutical industry--Mexico.