Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Dao-1NM_01001810090DAO    Dao1   
dao-1NC_0032836239C05C8.3    CELK04287    fkb-3   
dao-1NM_0724346239C05C8.3    CELK04287    fkb-3   

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

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Text2Knowledge ... Yong Huang 2002