Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CR33042NR_0014177227mir-7   
CR33042NR_0018977227miR-7   
CR33042NT_0337787227miR-7   

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

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Text2Knowledge ... Yong Huang 2002