1. Uniparental isodisomy due to duplication of chromosome 21 occurring in somatic cells monosomic for chromosome 21,1992
2. Karyotype 45, XX, - 21/ 46, XX,21qin an infant with symptoms of G deletion syndrome;Mikkelsen, M.; Vestermark, S.;I. J Med Genet,1974
3. A simplified protocol for fluorescence in situ hybridization with repetitive DNA probes and its use in clinical cytogenetics;Bartsch 0, Schwinger E;Clin Genet,1991
4. Sequence heterogeneity within the human alphoid repetitive DNA family;Devilee, P.; Slagboom, P.; Cornelisse, C.J.; Pearson, P.L.;Nucleic Acids Res,1986
5. Ring 21 chromosome: the mild end of the phenotypic spectrum;Gardner, R.J.M.; Monk, N.A.; Clarkson, J.E.; Allen, G.J.;Clin Genet,1986