Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
RpxNM_01042010090HES-1    Hesx1    601802
RPXNM_0038659606HESX1    601802
RpxU4072010090601802
RpxAF31789910090601802

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

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Text2Knowledge ... Yong Huang 2002