Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Pox-mesoNM_0795527227P29    meso    poxm    Pox-m    CG9610   
Pox-mesoNM_1692167227P29    meso    poxm    Pox-m    CG9610   
Pox-mesoNT_0337777227P29    meso    poxm    Pox-m    CG9610   

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

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Text2Knowledge ... Yong Huang 2002