Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
zgc:55398BC0453307955MGC55398    P4hb   
zgc:55398NM_2010487955P4hb    MGC55398   

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

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Text2Knowledge ... Yong Huang 2002