Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MT-RPS12BC0074999606RPMS12    RPSM12    MPR-S12    RPS12    MRPS12   
MT-RPS12BC0016179606RPMS12    RPSM12    MPR-S12    RPS12    MRPS12   
MT-RPS12NM_0211079606RPS12    RPMS12    RPSM12    MPR-S12    MRPS12   
MT-RPS12NM_0333639606RPS12    RPMS12    RPSM12    MPR-S12    MRPS12   
MT-RPS12NM_0333629606RPS12    RPMS12    RPSM12    MPR-S12    MRPS12   
MT-RPS12BC0064249606RPMS12    RPSM12    MPR-S12    RPS12    MRPS12   
mt-rps12NC_0043547227S12    rps12    CG7925    MRP-S12    l(1)3Ab    l(1)tko    tko   
mt-rps12NM_0803117227S12    rps12    CG7925    MRP-S12    l(1)3Ab    l(1)tko    tko   

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

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Text2Knowledge ... Yong Huang 2002