Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Prkgr1bNM_01116010090CGKI    Prkg1b    Prkg1    176894
PRKGR1BNM_0062589606PGK    CGKI    PRKG1B    cGKI-BETA    cGKI-alpha    PRKG1    176894

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

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Text2Knowledge ... Yong Huang 2002