Your Query returns 19 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Ercc4NT_08235410090133520
Ercc4NM_01576910090Xpf    133520
ERCC4L778909606133520
ERCC4L765689606133520
ERCC4AY4168209606133520
ERCC4AY4168219598
ERCC4AY41682210090133520
ERCC4AF4918149606133520
ERCC4NM_0052369606XPF    RAD1    133520
ERCC4AB01763510029
Ercc4NT_03962410090133520
Ercc4BC02679210090Xpf    133520
ERCC4G675119606133520
ERCC4G675129606133520
ERCC4G675139606133520
ERCC4G675149606133520
ERCC4G675159606133520
ERCC4G675169606133520
ERCC4NT_0103939606133520

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

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Text2Knowledge ... Yong Huang 2002