 CRD collaborate with the Centre for Health Economics at the University of York to undertake technology assessment reviews that inform NICE Technology Appraisals on the use of new and existing medicines and treatments within the NHS.CRD also has close links with the UK Cochrane Centre and contributes to the work of several of the Cochrane Collaboration’s Review and Methods groups.The Centre also has representation on the Steering and User groups of the Campbell Collaboration and is a member of the International Network of Agencies for Health Technology Assessment (INAHTA).