Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cnx26NM_00812510090Cx26    Gjb-2    Gjb2   
Cnx26BC01363410090Cx26    Gjb2   
Cnx26BC05143710090Cx26    Gjb2   

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

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Text2Knowledge ... Yong Huang 2002