p. 85 10 f.ex. article 7 (Objectives), article 8 (Principles), article 27.2 and article 27.3 (Patentable Subject Matter), Article 30 (Exceptions to Rights Conferred), Article 31 (Other Use Without Authorization of the Right Holder) of the TRIPS Agreement. Some exemptions and safeguards are contained also in Article XX (provides for an exception to GATT rules, including national treatment, when necessary to protect health and other public goods) and XXI of the GATT.