1. World population ageing;United Nations,2009
2. The assessment and prevention of falls in older people;National Institute for Health and Clinical Excellence,2013
3. Risk of inpatient falls is increased with single rooms;Singh;BMJ,2013
4. The challenge of geriatric medicine;Isaacs,1992
5. What is a geriatric syndrome anyway?;Flacker;Geriatr Ageing,2003