Hospitalization in the United States, 1997--HCUP Fact Book No. 1--Redirect to Archive This Fact Book provides an overview of hospital care. HCUP Fact Book No. 1 has been archived. Please go to:http://archive.ahrq.gov/data/hcup/factbk1/ Current as of December 2012 Internet Citation: Hospitalization in the United States, 1997--HCUP Fact Book No. 1--Redirect to Archive. December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/data/hcup/factbk1/index.html