Your Query returns 7 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hecyIIU225067634
HeCyIIAH0055417634G1   
HeCyIIU826607634G1   
HeCyIIU826617634G1   
HeCyIIAH0055427634G2   
HeCyIIU826627634G2   
HeCyIIU826637634G2   

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

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Text2Knowledge ... Yong Huang 2002