21. Also urges States to mainstream a gender perspective into national immigration and asylum policies, regulations and practices, as appropriate, in order to promote and protect the rights of all women, including the consideration of steps to recognize gender-related persecution and violence when assessing grounds for granting refugee status and asylum; 22. Further urges States and the United Nations system to give attention to, and encourages greater international cooperation in systematic research and the collection, analysis and dissemination of data, including data disaggregated by sex, age and other relevant information, on the extent, nature and consequences of violence against women and girls, and on the impact and effectiveness of policies and programmes for combating this violence; 23. Calls upon all relevant United Nations bodies, States, the Special Rapporteur, as well as relevant non-governmental organizations, to cooperate closely in the preparation of the Secretary-General’s in-depth study on all forms of violence against women; 24. Encourages the Special Rapporteur to respond effectively to reliable information that comes before her and requests all Governments to cooperate with and assist the Special Rapporteur in the performance of her mandated tasks and duties, to supply all information requested, including with regard to implementation of her recommendations, and to respond to the Special Rapporteur’s visits and communications; 25. Bears in mind the need to develop, with full participation of all Member States, an international consensus on indicators and ways to measure violence against women and calls on the Special Rapporteur to recommend proposals for indicators on violence against women and on measures taken by, inter alia, Member States, to eliminate violence against women; 26. Invites the Special Rapporteur, with a view to promoting greater efficiency and effectiveness, as well as enhancing her access to the information necessary to fulfil her duties, to continue to cooperate with other special procedures of the Commission, regional intergovernmental organizations and any of their mechanisms engaged in the promotion of human rights of women, including, where appropriate, undertaking joint missions, joint reports, urgent appeals and communications; 27. Requests special rapporteurs responsible for various human rights questions, United Nations organs and bodies, specialized agencies and intergovernmental organizations, and encourages the human rights treaty bodies, to continue to give consideration to violence against women within their respective mandates, to cooperate with and assist the Special Rapporteur in the performance of her mandated tasks and duties and, in particular, to respond to her requests for information on violence against women, its causes and consequences; 28. Renews its request to the Secretary-General to continue to provide the Special Rapporteur with all necessary assistance, in particular the staff and resources required to perform all mandated functions, especially in carrying out and following up on missions undertaken either separately or jointly with other special rapporteurs and working groups, and adequate assistance for periodic consultations with the Committee on the Elimination of Discrimination against Women and all other treaty bodies; page 7