Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
U5-23DNR_0016127227K2    U5    dU5    snRNA3    snRNA4    CR32999    U5snRNA    snRNA:U5    snRNA[[3]]    snRNA:U5:23D   
U5-23DNT_0337797227K2    U5    dU5    snRNA3    snRNA4    CR32999    U5snRNA    snRNA:U5    snRNA[[3]]    snRNA:U5:23D   

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

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Text2Knowledge ... Yong Huang 2002