Your Query returns 4 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ADRA1L1NM_0006809606ADRA1C    ALPHA1AAR    ADRA1A   
ADRA1L1NM_0333049606ADRA1C    ALPHA1AAR    ADRA1A   
ADRA1L1NM_0333029606ADRA1C    ALPHA1AAR    ADRA1A   
ADRA1L1NM_0333039606ADRA1C    ALPHA1AAR    ADRA1A   

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

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Text2Knowledge ... Yong Huang 2002