Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
G18.1bBC0187249606G18.2    C6orf9    G18    NG1    G18.1a    GPSM3   
G18.1bNM_0221079606G18    NG1    G18.2    C6orf9    G18.1a    GPSM3   
G18.1bAJ2439379606

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

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Text2Knowledge ... Yong Huang 2002