Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
POLGABC0505599606POLG1    PEO    POLG    174763
POLGABC0425719606POLG1    PEO    POLG    174763
POLGANM_0026939606PEO    POLG1    POLG    174763

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

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Text2Knowledge ... Yong Huang 2002