title: [Mental retardation syndrome due to fragile X chromosome: diagnostic and genetic problems].
authors.forename: S G
authors.initials: SG
authors.lastname: Vorsanova
authors.forename: I V
authors.initials: IV
authors.lastname: Vekhova
authors.forename: I A
authors.initials: IA
authors.lastname: Demidova
authors.forename: Iu B
authors.initials: IuB
authors.lastname: Iurov
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D005600:Fragile X Syndrome / Q000175:diagnosis* / Q000235:genetics*; D006801:Humans; D008297:Male; D017354:Point Mutation / Q000235:genetics