Answer:
The answer is: Agreement on Trade Related Aspects of Intellectual Property (TRIPs)
Explanation:
The TRIPs Agreement involves all the members of the World Trade Organization (WTO), it has been effective since 1995.
Since the introduction of the TRIPs Agreement, intellectual property law (i.e. copyright law) was introduced into multilateral trading.
It has since been expanded by the Doha Declaration in 2001, to promote access to medicines for all.