Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NPH2BC0063709606INV    NPHP2    INVS    243305
NPH2NM_0144259606INV    NPHP2    INVS    243305
NPH2NM_1832459606INV    NPHP2    INVS    243305
NPH2AF0434679606243305

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

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Text2Knowledge ... Yong Huang 2002