title: Trisomy 9p syndrome and syndrome in siblings.
mesh_terms: D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000235:genetics; D012729:Sex Chromosome Aberrations; D013577:Syndrome; D009626:Terminology as Topic; D014314:Trisomy; D014998:Y Chromosome