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2. Directory of clinical databases: improving and promoting their use;Black;Quality and Safety in Health Care,2003
3. Cross-sectional survey of multi-centre clinical databases in the United Kingdom;Black;BMJ,2004
4. Improving Health Care Quality. Fact sheet. AHRQ Publication No. 02-P032, September 2002. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/news/qualfact.htm.
5. Quality critical care: beyond ‘comprehensive critical care’;Department of Health Critical Care Stakeholder Forum,2005