Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cx3cr1NM_00998710090601470
CX3CR1AY0163709606601470
CX3CR1BC0280789606CMKBRL1    CMKDR1    GPR13    GPRV28    V28    CCRL1    601470
CX3CR1NM_0013379606V28    CCRL1    GPR13    CMKDR1    GPRV28    CMKBRL1    601470
Cx3cr1XM_14733910090601470
Cx3cr1NT_03948210090601470
Cx3cr1BC01265310090601470
Cx3cr1AF54716710116
CX3CR1NT_0225179606601470

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

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Text2Knowledge ... Yong Huang 2002