Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-B*4703AH0061839606HLA-B   
HLA-B*4703AF0717639606HLA-B   
HLA-B*4703AF0717649606HLA-B   
HLA-B*4703AH0055649606HLA-B   
HLA-B*4703AF0168429606HLA-B   
HLA-B*4703AF0168439606HLA-B   

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

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Text2Knowledge ... Yong Huang 2002