Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Ndufb4NT_08236210090
Ndufb4NM_026610100900610006N12Rik    1300010H20Rik   
NDUFB4BC0008559606CI-B15    MGC5105    B15   
NDUFB4AY4098789606
NDUFB4AY4098799598
NDUFB4AY40988010090
NDUFB4NM_1758229913B15   
Ndufb4NT_03962410090
Ndufb4BC056229100901300010H20Rik   
NDUFB4NM_0045479606B15    CI-B15    MGC5105   
NDUFB4NT_0056129606

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

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Text2Knowledge ... Yong Huang 2002