1. Baumgarten M, Margolis DJ, Localio AR, Kagan SH, Lowe RA, Kinosian B, Holmes JH, Abbuhl SB, Kavesh W, Ruffin A (2006) Pressure ulcers among elderly patients early in the hospital stay. J Gerontol A Biol Sci Med Sci 61:749–754
2. Horn SD, Bender SA, Bergstrom N, Cook AS, Ferguson ML, Rimmasch HL, Sharkey SS, Smout RJ, Taler GA, Voss AC (2002) Description of the National Pressure Ulcer Long-Term Care Study. J Am Geriatr Soc 50:1816–1825
3. Russo A, Elixhauser A (2006) Hospitalizations related to pressure sores, 2003. Healthcare Cost and Utilization Project. http://www.ahrq.gov/data/hcup/ . Accessed 25 March 2009
4. Brown G (2003) Long-term outcomes of full-thickness pressure ulcers: healing and mortality. Ostomy Wound Manage 49:42–50
5. Center for Medicare & Medicaid Services. Eliminating serious, preventable, and costly medical errors—never events. http://www.cms.hhs.gov/apps/media/press/release.asp?Counter=1863 . Accessed 7 April 2009