Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Arh6BC01827510090RhoB    Arhb    165370
ARH6BC0669549606RHOH6    RHOB    ARHB    165370
Arh6NM_00748310090Arhb    Rhob    165370
ARH6NM_0040409606ARHB    RHOH6    RHOB    165370

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

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Text2Knowledge ... Yong Huang 2002