1. Administration on Aging: A Profile of Older Americans: 2012. Washington, DC, U.S. Department of Health & Human Services, 2012
2. Health Canada, Projected Population by Age Group and Sex according to three projection scenarios — Ottawa, Canada, Publisher: Health Canada, 2010. Available at: http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/demo23a-eng.htm. Accessed September 17, 2014
3. Prevalence and predictors of persistent versus remitting mood, anxiety, and substance disorders in a national sample of older adults;Mackenzie;Am J Geriatr Psychiatry,2014
4. Manetti A, Hoertel N, Le Strat Y, et al: Comorbidity of late-life depression in the united states: a population-based study [Epub ahead of print Aug 26, 2013]. Am J Geriatr Psychiatry
5. Geriatric psychiatry education in Canada: the pathway to subspecialty recognition;Andrew;Int Psychogeriatr,2010