Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HD4BC0399049606KIAA0288    HDAC-A    HA6116    HDACA    HDAC4   
HD4NM_0060379606HDACA    HA6116    HDAC-A    KIAA0288    HDAC4   

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

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Text2Knowledge ... Yong Huang 2002