Medical and Psychosocial Aspects of Chronic Illness and Disability, Fourth Edition covers the medical aspects of the conditions most commonly encountered by rehabilitation and other health professionals and discusses symptoms, diagnoses, treatments, and prognoses. The Fourth Edition has been completely revised and updated and includes new chapters on Conceptualizing Chronic Illness and Disability; Intellectual Disability; and Financing Rehabilitation. In addition, chapters on Psychiatric Disability, Substance Use, and Conditions of the Blood and Immune System have been expanded.