Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CYP27B1AY2889169606264700
CYP27B1BC0017769606VDR    CYP1    VDDR    PDDR    VDD1    CP2B    CYP27B    P450c1    VDDRI    VDDR I    264700
CYP27B1AY4184439606264700
CYP27B1AY4184449598
CYP27B1AY41844510090264700
CYP27B1NM_0007859606VDR    CP2B    CYP1    PDDR    VDD1    VDDR    VDDRI    CYP27B    P450c1    VDDR I    264700
Cyp27b1XM_12590810090264700
Cyp27b1NT_08185610090264700
Cyp27b1NM_05376310116Cyp40   
CYP27B1NT_0294199606264700

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

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Text2Knowledge ... Yong Huang 2002