Your Query returns 13 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cpsf4NM_1785761009030kDa    MGC36996    603052
CPSF4BC0031019606NAR    CPSF30    NEB1    603052
CPSF4BC0507389606NAR    CPSF30    NEB1    603052
CPSF4AY4078839606603052
CPSF4AY4078849598
CPSF4AY40788510090603052
CPSF4NM_0066939606NAR    NEB1    CPSF30    603052
CPSF4NM_1739429913NAR   
Cpsf4NT_03932410090603052
Cpsf4BC02504510090MGC36996    30kDa    603052
Cpsf4BC05706710090MGC36996    30kDa    603052
CPSF4NT_0079339606603052
CPSF4NT_0795959606603052

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

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Text2Knowledge ... Yong Huang 2002