Motivation

Leontjevas, Ruslan, van Hooren, Susan, Waterink, Wim, Mulders, Ans 2009. Apathy and depressive mood in nursing home patients with early-onset dementia. American Journal of Alzheimer's Disease & Other Dementias®. 24 (4) 341-348.

Hirdes, J. P., Maxwell, C. J. 1994. Smoking cessation and quality of life outcomes among older adults in the Campbell's Survey on Well-Being. Canadian Journal of Public Health Revue Canadienne de Sante Publique. 85 (2) 99-102.