Your Query returns 7 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cyp21BNG_0013631009021OHB    Oh21-2    Cyp21-ps1    Cyp21a2ps    Cyp21a2-ps   
CYP21BNM_0005009606CAH1    CPS1    CA21H    CYP21    P450c21B    CYP21A2   
Cyp21BNT_03964910090Cyp21a2-ps   
Cyp21BNT_03966210090Cyp21a2-ps   
CYP21BNT_0075929606CAH1    CPS1    CA21H    CYP21    P450c21B    CYP21A2   
CYP21BNG_0000139606CAH1    CPS1    CA21H    CYP21    P450c21B    CYP21A2   
CYP21BS606129606

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

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Text2Knowledge ... Yong Huang 2002