Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
snRNA[[2]]NR_0016007227K7    dU3    snRNA2    snRNA3    CR31927    U3snRNA    snRNA:U3    U3snRNA22A    snRNA:U3:22A   
snRNA[[2]]NT_0337797227K7    dU3    snRNA2    snRNA3    CR31927    U3snRNA    snRNA:U3    U3snRNA22A    snRNA:U3:22A   

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

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Text2Knowledge ... Yong Huang 2002