Your Query returns 14 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Six6BC0531237955MGC63871    zgc:63871   
six6NM_1313637955SIX3    cb347    six3.2    six3b   
Six6NM_2011057955MGC63871    zgc:63871   
six6AF1446597955
Six6NM_01138410090Six9    Optx2    606326
SIX6BC0658319606OPTX2    Six9    606326
SIX6AF1416519606SIX9    606326
SIX6AY4099839606606326
SIX6AY4099849598
SIX6AY40998510090606326
SIX6NM_0073749606Six9    OPTX2    606326
Six6NT_03955110090606326
six6AF0302817955
SIX6NT_0264379606606326

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

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Text2Knowledge ... Yong Huang 2002