1. National Center for Health Statistics
2. National hospital discharge survey;DeFrances;Nat Health Stat Rep,2008
3. AHA Trendwatch (by The Lewin Group)
4. Urgent need for leadership in nursing care for older persons;Milisen;Appl Nurs Res,2006
5. Elderly patients with cognitive impairment have a high risk for functional decline during hospitalization;Pedone;The GIFA study,2005