Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HP55BC0091949606MTPOLB    POLB    POLGB    POLG2   
HP55NM_0072159606POLB    POLGB    MTPOLB    POLG2   

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

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Text2Knowledge ... Yong Huang 2002