Requests the Office of the High Commissioner to prepare its next annual thematic study on the rights of persons with disabilities on the twentieth anniversary of the adoption of the Convention on the Rights of Persons with Disabilities: lessons learned and challenges in the development of human rights standards and norms, and to prepare its subsequent study on measures to prevent all forms of exploitation, violence and abuse of persons with disabilities , in consultation with States and other relevant stakeholders, regional organizations, the Special Rapporteur on the rights of persons with disabilities and other relevant special procedure mandate holders, civil society organizations, including organizations of persons with disabilities, and national human rights institutions, requiring contributions to be submitted in an accessible format, and requests that such stakeholder contributions, the studies themselves and an easy-to-read-version of them be made available on the website of the Office, in an accessible format, prior to the sixty-fourth and sixty-seventh sessions of the Human Rights Council;