Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
LIGHTRBC0298489606HVEM    TR2    ATAR    HVEA    TNFRSF14   
LIGHTRBC0027949606HVEM    TR2    ATAR    HVEA    TNFRSF14   
LIGHTRNM_0038209606TR2    ATAR    HVEA    HVEM    TNFRSF14   

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

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Text2Knowledge ... Yong Huang 2002