3The U. S. Department of Health and Human Services ( US DHHS ) , Centers for Disease Control and Prevention ( CDC ) , National Center for Health Statistics ( NCHS ) , Ofrice of Analysis and Epidemiology. Compressed Mortality file : Underlying cause-of-death [ EB/OL ]. [ 2007-12-20 ]. http ://wonder. cdc. gov/mortSQL, html.
4National Center for Health Statistics ( NCHS ). Data on patient safety [ EB/OL ]. [ 2008 -03 -07 ]. http ://www. cdc. gov/ nchs/data/factsheets/patsafety 1. pdf.
5National Center for Health Statistics. Health, United States, 2007: With chartbook on trends in the health of americans [ G/OL ]. [ 2008-03 -07 ]. http ://www. cdc. gov/nchs/ data/hus/hus07, pdf.
6Heron M P. Deaths : Leading causes for 2004. National vital statistics reports [ J/OL ]. [ 2008-03-08 ]. http ://www. cdc. gov/nchs/data/nvsr/nvsr56 / nvsr56_05, pdf.
7Centers for Disease Control and Prevention (CDC) . Increases in age-group-specific injury mortality--United States, 1999- 2004 [ J ]. MMWR Morb Mortal Wkly Rep, 2007, 56 (49) :1281-1284.
