Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MUNC18CBC0477649606UNC-18C    MUNC18-3    PSP    STXBP3   
MUNC18CNM_0072699606PSP    UNC-18C    MUNC18-3    STXBP3   

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

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Text2Knowledge ... Yong Huang 2002