title: A model for familial trends in oligophrenia.
abstract: Theories and evidences on etiology of mental retardation are presented. Five cases of mental retardation from a Clinical Genetics Service are reported, as basis for an etiological model on mental retardation, quite operational in genetic counseling and familial orientation.
mesh_terms: D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis / Q000235:genetics*; D010375:Pedigree
vernacular_title: Um modelo para orientação familial em oligofrenias