The Health Technology Assessments (HTA) database provides details of completed and ongoing health technology assessments (studies of the medical, social, ethical and economic implications of healthcare interventions) from around the world. In addition to systematic reviews, HTA contains ongoing and completed research based on trials, questionnaires and economic evaluations. Included are more than 3,000 descriptive abstracts and nearly 7,000 total records. When available, links to summaries, full text or the web site of the research agency are included in the abstracts. The HTA database is produced by the Centre for Reviews and Dissemination (CRD) at the University of York, UK, using information obtained from members of International Network of Agencies for Health Technology Assessment (INAHTA) and other health technology assessment organizations.