Pericentric inversion of chromosome 11 in one of two similar retarded brothers.
D002675:Child, Preschool; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D025063:Chromosome Disorders; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007621:Karyotyping; D008297:Male