1. U.S. Census Bureau. Profiles of general demographic characteristics 2000: census of population and housing, United States (May2001). www2.census.gov/census_2000/datasets/demographic_profile/0_United_States/2kh00.pdf (accessed 2014 Jul 21).
2. U.S. Census Bureau. 2012 national population projections. www.census.gov/population/projections/data/national/2012.html (accessed 2014 Jul 21).
3. Institute of Medicine. Retooling for an aging America: building the health care workforce (April11, 2008). http://iom.nationalacademies.org/en/Reports/2008/Retooling-for-an-Aging-America-Building-the-Health-Care-Workforce.aspx (accessed 2015 Nov 9).
4. American Society of Health-System Pharmacists. ASHP accreditation standard for postgraduate year one (PGY1) pharmacy residency programs. www.ashp.org/DocLibrary/Accreditation/Newly-approved-PGY1-Standard-September-2014.pdf (accessed 2014 Dec 14).
5. American Society of Health-System Pharmacists. Educational outcomes, goals, and objectives for postgraduate year two (PGY2) pharmacy residencies in geriatrics: prepared in collaboration with the American Society of Consultant Pharmacists (2008). www.ashp.org/DocLibrary/Accreditation/Regulations-Standards/RTPObjGeriatricMarch2008.pdf (accessed 2014 Jun 10).