Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
WT33BC0328619606GUD    WAGR    WIT-2    WT1   
WT33NM_0003789606GUD    WAGR    WIT-2    WT1   
WT33NM_0244249606GUD    WAGR    WIT-2    WT1   
WT33NM_0244259606GUD    WAGR    WIT-2    WT1   
WT33NM_0244269606GUD    WAGR    WIT-2    WT1   
WT33BC0464619606GUD    WAGR    WIT-2    WT1   

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

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Text2Knowledge ... Yong Huang 2002