Non-specific X linked mental retardation

B. Kerr, G. Turner, J. Mulley, A. Gedeon, M. Partington

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


Non-specific X linked mental retardation (MRX) is mental retardation in persons of normal physical appearance who have no recognisable features apart from a characteristic pedigree. Review of published reports shows that there is clinical variability in the degree of mental retardation within families and genetic heterogeneity, based on gene localisation, between families. We propose a classification based on genetic localisation and a set of minimal clinical features that should be recorded in the hope of identifying possible specific phenotypes.

Original languageEnglish
Pages (from-to)378-382
Number of pages5
JournalJournal of Medical Genetics
Issue number6
Publication statusPublished - 18 Jun 1991
Externally publishedYes


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