Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGST-IVBC0082809606PIG12    MGST1L1    PGES    MGST1-L1    TP53I12    PTGES   
MGST-IVNM_0048789606PGES    PIG12    PP102    PP1294    MGST1L1    TP53I12    MGC10317    MGST1-L1    PTGES   
MGST-IVNM_1987979606PGES    PIG12    PP102    PP1294    MGST1L1    TP53I12    MGC10317    MGST1-L1    PTGES   

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

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Text2Knowledge ... Yong Huang 2002