Your Query returns 21 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Nr1h2NM_00947310090UR    Unr    LXRB    NER1    OR-1    Unr2    RIP15    LXRbeta    600380
Nr1h2NW_04755810116
Nr1h2NM_03162610116OR-1   
NR1H2AY19003054135
NR1H2AY1900319598
NR1H2AY190032132548
NR1H2AY19003354133
NR1H2AY1900349568
NR1H2AY19003554180
NR1H2AY1900369534
NR1H2AY19003775567
NR1H2AY1900389600
NR1H2AY1900399505
NR1H2AY1900409521
NR1H2AY19004178454
NR1H2AY1900429523
NR1H2BC0077909606UNR    NER    NER-I    RIP15    LXR-b    600380
NR1H2BC0477509606UNR    NER    NER-I    RIP15    LXR-b    600380
NR1H2NM_0071219606NER    UNR    LXR-b    NER-I    RIP15    600380
Nr1h2BC06602510090UR    LXRB    NER1    OR-1    RIP15    LXRbeta    600380
NR1H2NT_0111099606600380

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

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Text2Knowledge ... Yong Huang 2002