Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PBX2NM_1316127955fb73g03    wu:fb73g03    pbxy   
PBX2NG_0024349606PBXP1    176311
PBX2NT_0056129606PBXP1    176311
Pbx2NM_01746310090G17    176311
PBX2X598429606176311
PBX2NM_0025869606G17    HOX12    PBX2MHC    176311
PBX2AF02019810090176311
PBX2AF03000110090176311
Pbx2NT_03964910090176311
Pbx2NT_03966210090176311
Pbx2BC01028710090G17    176311
Pbx2BC06214710090G17    176311
PBX2NT_0075929606176311
Pbx2BX88304410116

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

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Text2Knowledge ... Yong Huang 2002