Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Serpinb1bNM_17305210090EIB    Serpin1b1    ovalbumin    6330533H24Rik   
Serpinb1bNT_03957810090
Serpinb1bAF42602510090
Serpinb1bAF52169810090
Serpinb1bBC03035410090EIB    Serpin1b1    ovalbumin   

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

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Text2Knowledge ... Yong Huang 2002