1. Epstein CJ (1995) Down syndrome (trisomy 21). In: Scriver CR, Beaudet AL, Sly WS, Valle D (eds) The Metabolic and Molecular Basis of Inherited Disease. McGraw Hill, New York, pp 749–794
2. Fauth C, Speicher MR (2001) Classifying by colors: FISH based genome analysis. Cytogen Cell Gen 93:1–10
3. Gardner RJM, Sutherland GR (1996) Chromosome Abnormalities and Genetic Counseling. Oxford University Press, New York
4. Hook EB (1992) Chromosome abnormalities. Prevalence, risks and recurrence. In: Brock DJH, Rodeck CH, Ferguson-Smith MA (eds) Prenatal Diagnosis and Screening. Churchill Livingstone, Edinburgh, pp 351–392
5. Jackson JF, North ER, Thomas JG (1976) Clinical diagnosis of Down’s Syndrome. Clin Genet 9: 83–487