Your Query returns 24 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NCF4AB0252199606601488
Ncf4NM_00867710090p40phox    601488
NCF4AH0049099606601488
NCF4U507209606601488
NCF4U507219606601488
NCF4U507229606601488
NCF4U507239606601488
NCF4U507249606601488
NCF4U507259606601488
NCF4U507269606601488
NCF4U507279606601488
NCF4U507289606601488
NCF4U507299606601488
NCF4BC0027989606P40PHOX    NCF    601488
NCF4AL0086379606601488
NCF4AY4192539606601488
NCF4AY4192549598
NCF4AY41925510090601488
NCF4NM_0134169606NCF    P40PHOX    601488
NCF4NM_0006319606NCF    P40PHOX    601488
Ncf4NT_08192110090601488
Ncf4BC02551710090p40phox    601488
NCF4NT_0115209606601488
Ncf4NM_2057117955

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

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Text2Knowledge ... Yong Huang 2002