Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cdkl1NM_183294100904933411O17Rik   
CDKL1AY5255489606
CDKL1NM_0041969606p42    KKIALRE   
Cdkl1NT_03955110090
CDKL1NT_0264379606

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

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Text2Knowledge ... Yong Huang 2002