HCUP Fact Book No. 2: Procedures in U.S. Hospitals, 1997--Redirect to Archive This Fact Book provides information on procedures performed in U.S. hospitals. HCUP Fact Book No. 2 has been archived. Please go to:http://archive.ahrq.gov/data/hcup/factbk2/ Current as of December 2012 Internet Citation: HCUP Fact Book No. 2: Procedures in U.S. Hospitals, 1997--Redirect to Archive. December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/data/hcup/factbk2/index.html