Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
b55C20.2BC0507379606SMA3   
b55C20.2NM_0067809606SMA3   
b55C20.2NM_2069119606SMA3-L    SMAC3L    FLJ13549    C6orf216   
b55C20.2NM_2069129606SMA3-L    SMAC3L    FLJ13549    C6orf216   
b55C20.2NM_2069109606SMA3-L    SMAC3L    FLJ13549    C6orf216   
b55C20.2NM_2069089606SMA3-L    SMAC3L    FLJ13549    C6orf216   

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

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Text2Knowledge ... Yong Huang 2002