Pervasive developmental disorders
Sunday, September 14th, 2008[#2: Edit Options>MightyAdsense>Adsense Code]
Definition Pervasive developmental disorders are a group of conditions originating in childhood that involve serious impairment in several areas, including physical, behavioral, cognitive, social, and language development. Description Pervasive developmental disorders (PDDs) are thought to be genetically based, with no evidence linking them to environmental factors; their incidence in the general population is estimated at [...]