Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-DRB1*13AF0897199606HLA-DRB1   
HLA-DRB1*13AJ5551569606
HLA-DRB1*13AJ5551569606
HLA-DRB1*13U596919606HLA-DRB1   
HLA-DRB1*13X976019606

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

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