Evolving concepts of disability and rehabilitation

Introduction
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By Douglas J Lanska MD MS MSPH

There have been 3 fundamentally different approaches to modeling disability: the medical model, the social model, and more recently various bio-psycho-social models that incorporate features of both the medical and social frameworks (Mausner and Kramer 1985; Pope and Tarlov 1991; Bickenbach et al 1999; World Health Organization 2002).