Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
DYT5BC0254159606GCH    GTPCH1    GCH1    600225
DYT5NM_0001619606GCH    GTPCH1    GCH1    600225

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

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Text2Knowledge ... Yong Huang 2002