Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Serpinb9NM_00925610090PI9    CAP3    Spi6    CAP-3    ovalbumin    601799
SERPINB9BC0025389606CAP-3    CAP3    PI9    601799
SERPINB9NM_0041559606PI9    CAP3    CAP-3    601799
Serpinb9NT_03957810090601799
Serpinb9U9670010090601799
Serpinb9BC02990010090PI9    CAP3    CAP-3    ovalbumin    601799
SERPINB9NT_0348809606601799

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

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Text2Knowledge ... Yong Huang 2002