Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Arpp19BC0478387955MGC56183    zgc:56183   
ARPP19BC0034189606ARPP-16    ARPP16    ARPP-19    605487
ARPP19NM_0066289606ARPP16    ARPP-16    ARPP-19    605487
Arpp19NM_2009727955MGC56183    zgc:56183   
Arpp19BC0450608355
Arpp19NW_04779910116
Arpp19BC05846110116
Arpp19BC04020610090ARPP-19    19kDa    Arpp12    605487
Arpp19NM_03166010116ARPP-19   
Arpp19NM_0215481009019kDa    Arpp12    ARPP-19    605487

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

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Text2Knowledge ... Yong Huang 2002