Your Query returns 12 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
U14NR_0000229606U14-S13-5    RNU14   
U14NR_0015997227K5    U1    U1a    dU1    U1-1    snRNA1    CR31656    U1-21.1    U1a-21D    U1snRNA    snRNA:U1    U1snRNA21D    snRNA:U1:21D   
U14NT_0337797227K5    U1    U1a    dU1    U1-1    snRNA1    CR31656    U1-21.1    U1a-21D    U1snRNA    snRNA:U1    U1snRNA21D    snRNA:U1:21D   
U14AJ5439937227
U14AB02150610368
U14U4340010372
U14AF03721810372
U14X8341310368
U14NC_00166410368
U14NC_00171610372
U14NC_00089832604
U14AF15770632604

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

Google

Text2Knowledge ... Yong Huang 2002