title: Chromosome 21, Down's syndrome and Alzheimer's disease.
mesh_terms: D000544:Alzheimer Disease / Q000235:genetics*; D002869:Chromosome Aberrations / Q000150:complications*; D025063:Chromosome Disorders; D002891:Chromosomes, Human, Pair 21; D004314:Down Syndrome / Q000235:genetics*; D006801:Humans