Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Sgpp1NM_03075010090SPP    SPP1    Spph1    mSPP1   
SGPP1BC0638399606SPPase1   
SGPP1NM_0307919606SPPase1   
Sgpp1NT_03955110090
Sgpp1BC03759210090mSPP1    SPP1    Spph1    SPP   
SGPP1NT_0264379606

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

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Text2Knowledge ... Yong Huang 2002