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Title: High incidence of mental retardation in Turner syndrome patients with ring chromosome X formation. Author: Fryns JP, Kleczkowska A, Van Den Berghe H. Journal: Genet Couns; 1990; 1(2):161-5. PubMed ID: 2080999. Abstract: In this report we describe and comment the high incidence of mental subnormality in a series of 21 Turner syndrome patients with ring chromosome X, diagnosed in Leuven in the period 1965-1989. In 7 of the 21 (one third) a varying degree of mental retardation, from borderline intelligence to severe mental retardation was found. In 4 of them (18.5%) mental retardation was moderate to severe.[Abstract] [Full Text] [Related] [New Search]