1. The Abbey pain scale: A 1-minute numerical indicator for people with end-stage dementia;Abbey;International Journal of Palliative Nursing,2004
2. The management of persistent pain in older persons;American Geriatrics Society;Journal of the American Geriatrics Society,2002
3. Cancer pain management in adults;Australian Adult Cancer Pain Management Guideline Working Party,2014
4. Position statement No. 21: Pain in older people;Australian and New Zealand Society for Geriatric Medicine,2012
5. Social learning theory;Bandura,1977