American Association on Intellectual and Developmental Disabilities. (2011). Definition of Intellectual Disability. Retrieved January 31, 2011 from http://www.aaidd.org/content_100.cfm?navID=21
Cooper, S. Morrison, J. Melville, C. Finlayson, J. Allan, L. Martin, G. & Robinson, N. (2006). Improving the health of people with intellectual disabilities: outcomes of a health screening programmed after 1 year. Journal of Intellectual Disability Research. 50 (9), 667-677.
Horrell, S. MacLean, W. & Conley, V. (2006), Patient and Parent/Guardian Perspectives on the Healthcare of Adults with Mental Retardation. Mental Retardation. 44 (4). 239-248.
Jones, M. McLafferty, E. Walley, R. Toland, J. & Melson, N. (2008). Inclusion in Primary care for people with intellectual disabilities. Journal of Intellectual Disabilities. 12 (2). 93-109.
Lotan, G. & Ells, C. Adults with Intellectual and Developmental Disabilities and Participation in Decision Making: Ethical Considerations for Professional – Client Practice. Intellectual and Developmental Disabilities. 48(2) 112-125.
PubMed Health. (2009). Mental Retardation. Retrieved January 31, 2011 from http://www.ncbi.nlm.nih.gov
