Your Query returns 12 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
DDR2U822154932
DDR2Z747944932
DDR2Z747954932
Ddr2NM_02256310090Ntrkr3    tyro10   
DDR2BC0529989606NTRKR3    TYRO10    TKT   
DDR2AY3988569606
DDR2AY3988579598
DDR2AY39885810090
DDR2NM_0061829606TKT    NTRKR3    TYRO10   
Ddr2NT_07830610090
DDR2NT_0046689606
DDR2NC_0011474932

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

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Text2Knowledge ... Yong Huang 2002