Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
fb16d01NM_1315137955ccnb    cycb    cb267    cycb1    fa19g04    fb16e07    fi21c01    wu:fa19g04    wu:fb16d01    wu:fb16e07    wu:fi21c01    ccnb1   
fb16d01BC0671927955cycb1    cb267    ccnb    cycb    fb16e07    fi21c01    wu:fb16e07    wu:fi21c01    wu:fa19g04    wu:fb16d01    fa19g04    ccnb1   

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

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Text2Knowledge ... Yong Huang 2002