Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-B*440201AH0127419606HLA-B   
HLA-B*440201AY2503749606HLA-B   
HLA-B*440201AY2503759606HLA-B   
HLA-B*440201AY2503769606HLA-B   
HLA-B*440201AY2503779606HLA-B   
HLA-B*440201AY2503789606HLA-B   
HLA-B*440201AY2503799606HLA-B   
HLA-B*440201AY2503809606HLA-B   
HLA-B*440201AY2503819606HLA-B   

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

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Text2Knowledge ... Yong Huang 2002