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Curr Hematol Malig Rep, <b>11<\/b>:333-341, 2016.","DOI":"10.1007\/s11899-016-0338-x"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5. Muramatsu H, Kato K, Watanabe N, <i>et al.<\/i> Risk factors for early death in neonates with Down syndrome and transient leukaemia. Br J Haematol, <b>142<\/b>:610-615, 2008.","DOI":"10.1111\/j.1365-2141.2008.07231.x"},{"key":"6","unstructured":"6. Won E, Gruber TA, Tucker S, Schiff DE. Acute megakaryoblastic leukemia with trisomy 21 and tetrasomy 21 and trisomy 19 clones in a phenotypically normal child with mosaic trisomy 21. Case Rep Pediatr, 7813048, 2008."},{"key":"7","doi-asserted-by":"crossref","unstructured":"7. Shin MG, Choi HW, Kim HR <i>et al.<\/i> Tetrasomy 21 as a sole acquired abnormality without <i>GATA1<\/i> gene mutation in pediatric acute megakaryoblastic leukemia:a case report and review of the literature. 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