Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-B*3901 variantAH0081289606HLA-B   
HLA-B*3901 variantAF1760819606HLA-B   
HLA-B*3901 variantAF1760829606HLA-B   

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

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Text2Knowledge ... Yong Huang 2002