Your Query returns 13 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HLA-B*7301AH0127569606HLA-B   
HLA-B*7301AY2504949606HLA-B   
HLA-B*7301AY2504959606HLA-B   
HLA-B*7301AY2504969606HLA-B   
HLA-B*7301AY2504979606HLA-B   
HLA-B*7301AY2504989606HLA-B   
HLA-B*7301AY2504999606HLA-B   
HLA-B*7301AY2505009606HLA-B   
HLA-B*7301AY2505019606HLA-B   
HLA-B*7301AJ4959139606
HLA-B*7301AJ4959679606
HLA-B*7301AJ4960219606
HLA-B*7301AJ5499189606

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

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Text2Knowledge ... Yong Huang 2002