Your Query returns 21 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
CCR9BC0205589606CCR10    CMKBR9    D6    CCBP2    602648
CCR9BC0088169606CCR10    CMKBR9    D6    CCBP2    602648
CCR9BC0116319606CCR10    CMKBR9    D6    CCBP2    602648
CCR9NM_0012969606D6    CCR10    CMKBR9    CCBP2    602648
CCR9NM_02160910090D6    CCR10    Cmkbr9    Ccbp2    602648
CCR9AP0061849823
Ccr9NM_00991310090Cmkbr10    GPR-9-6    602648
Ccr9NW_04780410116
CCR9AY2421279606602648
CCR9AF1452079606602648
CCR9AF1454399606602648
CCR9AF1454409606602648
CCR9NM_0312009606GPR-9-6    602648
CCR9NM_0066419606GPR-9-6    602648
CCR9AJ13135710090602648
Ccr9NT_03948210090602648
Ccr9AF45878010116
CCR9AB0813128255
CCR9AB1192639823
CCR9NT_0225179606602648
Ccr9NM_17232910116

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

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Text2Knowledge ... Yong Huang 2002