Encourages, in this regard, relevant United Nations organizations and bodies, including the International Research and Training Institute for the Advancement of Women, the United Nations Development Fund for Women and the United Nations Educational, Scientific and Cultural Organization, to contribute to the preparation of guidelines for the use of Governments in the elaboration of their manuals, in cooperation with all relevant intergovernmental and non-governmental organizations, including those concerned with traumatic stress, taking into account existing research material or studies on the subject;