Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Lrrc21NM_14624510090MGC40670   
LRRC21NM_0156139606PAL    DKFZP434K091   
Lrrc21BC03227010090MGC40670   
LRRC21NT_0300599606

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

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Text2Knowledge ... Yong Huang 2002