Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
BTN2A2BC0174979606BTF2    BT2.2   
BTN2A2BC0140219606BTF2    BT2.2   
BTN2A2AL0219179606
BTN2A2NM_1815319606BTF2    BT2.2   
BTN2A2NM_0069959606BTF2    BT2.2   
BTN2A2NT_0075929606

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

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Text2Knowledge ... Yong Huang 2002