Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Peg4BC02488010090SMN    HCERN3    MGC18604    MGC30325    Snrpn   
Peg4BC01958910090SMN    HCERN3    MGC18604    MGC30325    Snrpn   
Peg4NM_01367010090SMN    HCERN3    MGC18604    MGC30325    2410045I01Rik    Snrpn   

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

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Text2Knowledge ... Yong Huang 2002