title: MOSAICISM FOR AN EXTRA CHROMOSOME IN THE 21-22 GROUP.
mesh_terms: D002869:Chromosome Aberrations; D002875:Chromosomes; D003878:Dermatoglyphics; D005528:Foot; D006801:Humans; D008607:Intellectual Disability; D009030:Mosaicism; D014314:Trisomy
keywords: CHROMOSOMES; DERMATOGLYPHICS; FOOT; MENTAL RETARDATION; MOSAICISM; TRISOMY