Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Pax-2NM_01103710090Pax2   
Pax-2NM_1311847955noi    paxb    cb378    pax-b    pax2.1    PAXZF-B    pax[zf-b]    pax2a   
Pax-2BC0666907955noi    cb378    pax-b    PAXZF-B    pax[zf-b]    pax2a   
pax-2U1397510090
Pax-2AB0264969031
Pax-2AF1793008355
Pax-2AJ0006668355
Pax-2AJ0006698355
PAX-2NM_2047939031

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

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Text2Knowledge ... Yong Huang 2002