Your Query returns 23 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MOR1BC0019179606M-MDH    MDH    MGC:3559    MDH2   
MOR1NM_0059189606MDH    M-MDH    MGC:3559    MDH2   
Mor1NM_00861710090MDH    Mdh-2    Mor-1    Mdh2   
mor1AF181662350
MOR1L251199606
Mor1NW_04737010116
MOR1U125699606
MOR1AF1535009606
Mor1NT_03931410090
Mor1AF19684010116
Mor1AF19684110092
Mor1AF19684210092
Mor1AF19684310090
Mor1AF19684410091
Mor1AF19684510091
Mor1AF19684610096
Mor1AF19684710103
Mor1AF19684810100
Mor1AF19684910103
Mor1AF19685010089
Mor1AF19685110093
Mor1BC06316510116Mdh2   
Mor1NM_03115110116Mdh2   

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

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Text2Knowledge ... Yong Huang 2002