Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ACHRBBC0113719606CHRNB    CHRNB1    100710
ACHRBBC0235539606CHRNB    CHRNB1    100710
ACHRBNM_0007479606CHRNB    CHRNB1    100710

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

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Text2Knowledge ... Yong Huang 2002