Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cox7a2lNM_00918710090EB1    SIG81    COX7AR    COX7RP    SIG-81    Silg81    605771
COX7A2LBC0052519606EB1    COX7RP    COX7AR    SIG81    605771
COX7A2LBC0070959606EB1    COX7RP    COX7AR    SIG81    605771
COX7A2LAY4049169606605771
COX7A2LAY4049179598
COX7A2LAY40491810090605771
COX7A2LNM_0047189606EB1    SIG81    COX7AR    COX7RP    605771
Cox7a2lXM_12318810090SIG-81    605771
Cox7a2lNT_03965810090605771
Cox7a2lBC00471510090SIG-81    EB1    SIG81    COX7AR    COX7RP    605771
COX7A2LNT_0221849606605771

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

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Text2Knowledge ... Yong Huang 2002