Your Query returns 16 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Notch2NM_01092810090N2    600275
Notch2U774939606600275
Notch2NW_04762710116
Notch2NM_02435810116
NOTCH2AF3153569606600275
NOTCH2X801159606600275
NOTCH2NM_0244089606hN2    600275
Notch2D3221010090600275
Notch2NT_03923810090600275
Notch2U4764211768
Notch2U4764311768
Notch2U4764411768
Notch2U4764511768
notch2AB0447909031
Notch2AB0529369031
NOTCH2NT_0047549606600275

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

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Text2Knowledge ... Yong Huang 2002