Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cyp18a1AY0755237227
Cyp18a1AE0035097227
Cyp18a1NC_004354722718a1    P450    CYP18    P-450    181H6T    CG6816    CytP450    Eig17-1   
Cyp18a1NM_078679722718a1    P450    CYP18    P-450    181H6T    CG6816    CytP450    Eig17-1   
Cyp18a1NM_167628722718a1    P450    CYP18    P-450    181H6T    CG6816    CytP450    Eig17-1   

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

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Text2Knowledge ... Yong Huang 2002