Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
p16INK4aNM_00987710090Arf    p16    MTS1    p19ARF    ARF-INK4a    INK4a-ARF    Cdkn2a   
p16INK4aAF33219010090Cdkn2a   
p16INK4aAF1155449606
p16ink4aL7615010090
p16ink4aAF11554510090
p16INK4aAH00489810090
p16INK4aU6608610090
p16INK4aU6608710090

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

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Text2Knowledge ... Yong Huang 2002