Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SUE21BC0387109606PRED34    B18    C21orf63   
SUE21NM_0581879606B18    PRED34    C21orf63   

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

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Text2Knowledge ... Yong Huang 2002