Mental Retardation, X-Linked

X-Linked Mental Retardation Disorders; X-Linked Mental Retardation Syndromes; Mental Retardation, X Linked; Retardation, X-Linked Mental; X Linked Mental Retardation; X Linked Mental Retardation Disorders; X Linked Mental Retardation Syndromes
A class of genetic disorders resulting in mental retardation that is associated either with mutations of GENES located on the X CHROMOSOME or aberrations in the structure of the X chromosome (SEX CHROMOSOME ABERRATIONS).