Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-B*2711 variantAH0109929606HLA-B   
HLA-B*2711 variantAY0426709606HLA-B   
HLA-B*2711 variantAY0426719606HLA-B   

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

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Text2Knowledge ... Yong Huang 2002