Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
C20orf33BC0367399606P14L    FLJ21108    NAP    NYD-SP19    CTNNBL1   
C20orf33NM_0308779606NAP    P14L    FLJ21108    NYD-SP19    CTNNBL1   

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

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Text2Knowledge ... Yong Huang 2002