Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
alpha-1-antitrypsinBC0119919606AAT    PI    PI1    A1AT    A1A    SERPINA1   
alpha-1-antitrypsinBC0156429606AAT    PI    PI1    A1AT    A1A    SERPINA1   
alpha-1-antitrypsinA2046732630

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

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Text2Knowledge ... Yong Huang 2002