Your Query returns 15 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Slc6a4NM_01048410090Htt    Sert    5-HTT    182138
Slc6a4NW_04733610116
SLC6A4AF1178269606182138
slc6A4AJ0124739606182138
SLC6A4AF2988149606182138
SLC6A4AY4132389606182138
SLC6A4AY4132399598
SLC6A4AY41324010090182138
SLC6A4AY0835839544
SLC6A4NM_0010459606SERT    5-HTT    182138
SLC6A4NM_1746099913
SLC6A4Y1102410116
Slc6a4NT_03951510090182138
SLC6A4NT_0107999606182138
Slc6a4NM_01303410116

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

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Text2Knowledge ... Yong Huang 2002