Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
GHF-1NM_00884910090dw    Hmp1    Pit-1    dwarf    Pou1f1    Pit1   
GHF-1NM_0003069606PIT1    POU1F1   
GHF-1BC06121310090Pou1f1    Hmp1    dwarf    Pit1   
GHF-1AF0298929031Pit-1   
GHF-1X772239606
GHF-1X772239606Pit1   
GHF-1X6536810116GHF-2   
GHF-1X6536410116

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

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Text2Knowledge ... Yong Huang 2002