Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NTS1BC0109189606NMN-125    NN    NT    NT/N    NTS   
NTS1NM_0061839606NN    NT    NT/N    NMN-125    NTS   
NTS1BC04302410090NN    NT    NT/N    NMN-125    Nts   
NTS1NM_02443510090NN    NT    NT/N    NMN-125    5033428E16Rik    Nts   
NTS1X754305811
NTS1AB0928113847

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

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Text2Knowledge ... Yong Huang 2002