Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
EST157481BC0212819606BCRP    ABCP    MXR1    ABC15    MXR    BCRP1    BMDP    MRX    ABCG2   
EST157481NM_0048279606MRX    MXR    ABCP    BCRP    BMDP    MXR1    ABC15    BCRP1    ABCG2   

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

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Text2Knowledge ... Yong Huang 2002