Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
C23G10.4bNC_0032816239C23G10.4a    CELK00815    rpn-2   
C23G10.4bNM_0659456239C23G10.4a    CELK00815    rpn-2   
C23G10.4bNM_0659466239C23G10.4a    CELK00815    rpn-2   

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

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Text2Knowledge ... Yong Huang 2002