Kim J, Lyu CJ, Shin S, Lee S, Choi JR. Frequency and Clinical Characteristics of Intrachromosomal Amplification of Chromosome 21 in Korean Childhood B-lineage Acute Lymphoblastic Leukemia. Ann Lab Med 2016;36:475-480. https://doi.org/10.3343/alm.2016.36.5.475