Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PANOPSINBC0367739606ERO    ECPN    NMO-1    OPN3   
PANOPSINBC0626229606ERO    ECPN    NMO-1    OPN3   
PANOPSINNM_0143229606ERO    ECPN    NMO-1    OPN3   

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

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Text2Knowledge ... Yong Huang 2002