Translocation t ( 15 ; 17 ) ( q22 ; q21 ) is an acquired clonal cytogenetic change present in almost all cases of acute promelocytic leukemia ( APL ) .
translocation t ( 15 ; 17 ) ( q22 ; q21 ) is an acquired clonal cytogenetic change present in almost all cases of acute promelocytic leukemia ( apl ) .
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