Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
wu:fc49b09BC0453027955fc49b09    Sephs1    zgc:55304   
wu:fc49b09NM_1997017955Sephs1    fc49b09    zgc:55304   

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

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Text2Knowledge ... Yong Huang 2002