Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC878BC0000419606MRPL2    RPML2    MRP-L2    MRPL37   
MGC878NM_0164919606MRPL2    RPML2    MRP-L2    MRPL37   

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

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Text2Knowledge ... Yong Huang 2002