Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
mtnd6NC_0023337955ND6   
MTND6NC_0018079606ND6   
MTND6NC_0015679913ND6   
MTND6AF3390859606
MTND6AF3390869606
MTND6NM_1737149606

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

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Text2Knowledge ... Yong Huang 2002