Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ALASHBC0117989606ALAS    ALAS1   
ALASHNM_1991669606ALAS    ALAS1   
ALASHNM_0006889606ALAS    ALAS1   

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

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Text2Knowledge ... Yong Huang 2002