Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cyt-b5-rAY0582877227
Cyt-b5-rNG_0005157227Cytb    Cyt-b    Cytb5    TU36B    Cyt-b5    TU-36B    CG13279    CT32565   
Cyt-b5-rAE0036527227
Cyt-b5-rNM_0578067227Cytb    Cyt-b    Cytb5    TU36B    Cyt-b5    TU-36B    CG13279   
Cyt-b5-rNT_0337797227Cytb    Cyt-b    Cytb5    TU36B    Cyt-b5    TU-36B    CG13279   

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

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Text2Knowledge ... Yong Huang 2002