Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
AtarNM_17893110090HveA    Hvem    Tnfrs14    Tnfrsf14   
ATARBC0298489606HVEM    TR2    LIGHTR    HVEA    TNFRSF14   
ATARBC0027949606HVEM    TR2    LIGHTR    HVEA    TNFRSF14   
ATARNM_0038209606TR2    HVEA    HVEM    LIGHTR    TNFRSF14   
AtarBC02212510090Tnfrs14    Hvem    HveA    Tnfrsf14   

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

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Text2Knowledge ... Yong Huang 2002