Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CMH2BC0026539606CMD1D    TNNT2    191045
CMH2AY0442739606TNNT2    191045
CMH2NM_0003649606CMD1D    TNNT2    191045

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

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Text2Knowledge ... Yong Huang 2002