1. The Baby Boom Cohort in the United States: 2012 to 2060;Ortman,2014
2. Administration on Aging. Aging Statistics. Available: http://www.aoa.acl.gov/Aging_Statistics/index.aspx.
3. The State of Aging and Health in America 2013,2013
4. Family Caregiver Alliance. Selected Long-term Care Statistics. Available: https://www.caregiver.org/selected-long-term-care-statistics.
5. Profiles in Caregiving: The Unexpected Career;Aneshensel,1995