Kulbachuk, N.V., Matviiuk, S.V., Bilokon, S.V. and Sechnyak, O.L. 2021. The kariotype variability in children with Down syndrome from the Odesa region . Zaporozhye мedical journal. 23, 1 (Apr. 2021), 77–82. DOI:https://doi.org/10.14739/2310-1210.2021.1.224888.