Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SERPINA4BC0149929606KLST    PI4    KST    KAL    kallistatin    147935
SERPINA4NM_0062159606KAL    KST    PI4    KLST    kallistatin    147935
SERPINA4NT_0264379606147935

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

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Text2Knowledge ... Yong Huang 2002