Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CD66BC0144739606BGP    BGP1    BGPI    CD66a    CEACAM1   
CD66NM_0017129606BGP    BGP1    BGPI    CD66A    CEACAM1   

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

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Text2Knowledge ... Yong Huang 2002