Your Query returns 16 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Avpr2NM_01940410090DI1    DIR    ND1    V2R    ADHR    304800
Avpr2NW_04805210116
Avpr2NM_01913610116
AVPR2AY2421319606304800
AVPR2U043579606304800
AVPR2AY4185579606304800
AVPR2AY4185589598
AVPR2AY41855910090304800
AVPR2NM_0000549606DI1    DIR    NDI    V2R    ADHR    304800
AVPR2NM_1742469913
Avpr2AJ31075310090304800
Avpr2AF13309310090304800
Avpr2NT_03970810090304800
Avpr2NT_03974510090304800
Avpr2AY33819510116
AVPR2NT_0259659606304800

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

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Text2Knowledge ... Yong Huang 2002