Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SERPINB1AY3984157955
SERPINB1BC0090159606EI    ELANH2    PI2    LEI    M/NEI    MNEI   
SERPINB1AY4006989606
SERPINB1AY4006999598
SERPINB1AY40070010090
SERPINB1NM_0306669606EI    LEI    PI2    MNEI    M/NEI    ELANH2   
Serpinb1AF42602410090
Serpinb1AF52169710090
SERPINB1NT_0348809606

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

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Text2Knowledge ... Yong Huang 2002