Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
fa91e11BC0653597955hsp90beta    wu:fa91e11    hsp90b   
fa91e11NM_1313107955hsp90beta    wu:fa91e11    hsp90b   

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

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Text2Knowledge ... Yong Huang 2002