Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
zgc:55362BC0441487955fi19b06    Tk1    wu:fi19b06   
zgc:55362NM_1998327955Tk1    fi19b06    wu:fi19b06   

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

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Text2Knowledge ... Yong Huang 2002