Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
TOPIIBNM_0010689606TOP2B   
topIIBL350442096
topIIbX719119606
topIIbX680609606

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002