Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CR32999NR_0013237227snRNA:U5:23D   
CR32999NR_0016127227K2    U5    dU5    U5-23D    snRNA3    snRNA4    U5snRNA    snRNA:U5    snRNA[[3]]    snRNA:U5:23D   
CR32999NT_0337797227K2    U5    dU5    U5-23D    snRNA3    snRNA4    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