Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
SNRNP-BNM_00922510090SMB    SM-B    SM11    Snrpb   
snRNP-BNM_0030919606COD    SNRPB1    SmB/SmB'    SNRPB   
snRNP-BNM_1982169606COD    SNRPB1    SmB/SmB'    SNRPB   
snRNP-BBC0035309606SNRPB1    COD    SmB/SmB'    SNRPB   

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

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Text2Knowledge ... Yong Huang 2002