Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
COX7ARNM_00918710090EB1    SIG81    COX7RP    SIG-81    Silg81    Cox7a2l   
COX7ARBC0052519606EB1    COX7RP    SIG81    COX7A2L   
COX7ARBC0070959606EB1    COX7RP    SIG81    COX7A2L   
COX7ARNM_0047189606EB1    SIG81    COX7RP    COX7A2L   
COX7ARBC00471510090SIG-81    EB1    SIG81    COX7RP    Cox7a2l   

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

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Text2Knowledge ... Yong Huang 2002