Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
mdr4AJ53505839947
mdr4AJ53506739947
MDR4AF5037735085
mdr4BX6496065085

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

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Text2Knowledge ... Yong Huang 2002