Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
dSERTNM_0791227227SERT    CG4545    dSERT1   
dSERTNT_0337787227SERT    CG4545    dSERT1   

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

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Text2Knowledge ... Yong Huang 2002