Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
cPGESNM_02241510090mPGES    D2Ertd369e    2410099E23Rik    Ptges   
cPGESAY28113010090Ptges   
cPGESBC02496010090mPGES    Ptges   
cPGESBC00370810090sid3177    Ptges    Tebp   
cPGESNM_01976610090Ptges    sid3177    5730442A20Rik    Tebp   

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

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Text2Knowledge ... Yong Huang 2002