Your Query returns 25 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
GRF2BC0493057955MGC56372    zgc:56372   
Grf2NM_00902710090Rasgrf2    600303
GRF2NM_0069099606RAS-GRF2    RASGRF2    600303
GRF2NM_2011267955MGC56372    zgc:56372   
Grf2NM_05405010090C3G    4932418O06Rik    Rapgef1    600303
GRF2NM_1986799606C3G    RAPGEF1    600303
GRF2NM_0053129606C3G    RAPGEF1    600303
GRF2BC0417109606C3G    RAPGEF1    600303
GRF2NC_0011344932REB1   
GRF2U093763702
GRF2S771354577
Grf2XM_21601810116
Grf2NW_04765110116
GRF2AY4146129606600303
GRF2AY4146139598
GRF2AY41461410090600303
Grf2NT_03920610090600303
Grf2AF34866910090C3G    600303
Grf2AH00880510090600303
Grf2AF10930910090600303
Grf2AF10931010090600303
Grf2AF10931110090600303
Grf2AF10931210090600303
GRF2NT_0350149606600303
grf2AJ56640839947

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

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Text2Knowledge ... Yong Huang 2002