Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
C6orf9BC0187249606G18.2    G18    NG1    G18.1a    G18.1b    GPSM3   
C6orf9NM_0221079606G18    NG1    G18.2    G18.1a    G18.1b    GPSM3   

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

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Text2Knowledge ... Yong Huang 2002