Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
BCL11BAY4019799606606558
BCL11BAY4019809598
BCL11BAY40198110090606558
BCL11BAJ4046149606606558
BCL11BNM_0228989606RIT1    CTIP2    CTIP-2    606558
BCL11BNM_1385769606RIT1    CTIP2    CTIP-2    606558
Bcl11bNT_03955310090606558
Bcl11bBC01950310090Ctip2    Rit1    606558
Bcl11bNM_02139910090Rit1    Ctip2    B630002E05Rik    606558
BCL11BNT_0264379606606558

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

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Text2Knowledge ... Yong Huang 2002