title: Familial 13p+ chromosome with mental retardation and dysmorphic features of two children.
abstract: Chromosomal studies of two brothers with mental retardation and dysmorphic features showed a 13p+ chromosome. The same 13p+ chromosome was found in the father and the other sib, who were both phenotypically normal. The relationship between the physical abnormalities and the chromosomal findings are discussed.
mesh_terms: D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000235:genetics*; D025063:Chromosome Disorders; D002901:Chromosomes, Human, 13-15; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000235:genetics*; D008297:Male; D010375:Pedigree; D010641:Phenotype