1. New estimates of lifetime nursing home use;Spillman;Have patterns of use changed?,2002
2. 2007 http://www.cdc.gov/nchs/data/nnhsd/nursinghomes1973-2004.pdf
3. The National Nursing Home Survey;Jones;1999 Summary. National Center for Health Statistics,2002
4. Challenges of systems of care for frail older persons;Coleman;The United States of America experience,2002