Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
pac1-refAH0136414577pac1   
pac1-refAH0136414577pac1   
pac1-refAY4423444577pac1   
pac1-refAY4423454577pac1   

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

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Text2Knowledge ... Yong Huang 2002