Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NDUFB6BC0292479606B17    CI-    MGC13675   
NDUFB6AY4149699606
NDUFB6AY4149709598
NDUFB6AY41497110090
NDUFB6NM_0024939606CI    B17    MGC13675   
NDUFB6NM_1827399606CI    B17    MGC13675   
NDUFB6NM_1757879913B17   
NDUFB6BC0098019606B17    CI    MGC13675   
NDUFB6NT_0084139606

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

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Text2Knowledge ... Yong Huang 2002