Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
A1ATBC0119919606AAT    PI    PI1    A1A    alpha-1-antitrypsin    SERPINA1   
A1ATBC0156429606AAT    PI    PI1    A1A    alpha-1-antitrypsin    SERPINA1   
A1ATNM_0002959606PI    A1A    AAT    PI1    SERPINA1   

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

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Text2Knowledge ... Yong Huang 2002