Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MGC3969BC0028079606CD20    B1    S7    LEU-16    Bp35    MS4A2    MS4A1   
MGC3969NM_0219509606B1    S7    Bp35    CD20    MS4A2    LEU-16    MS4A1   
MGC3969NM_1528679606B1    S7    Bp35    CD20    MS4A2    LEU-16    MS4A1   
MGC3969NM_1528669606B1    S7    Bp35    CD20    MS4A2    LEU-16    MS4A1   

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

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Text2Knowledge ... Yong Huang 2002