Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ADAMTS-20NM_17743110090bt    Adamst20    ADAMST-20    Adamts20   
ADAMTS-20AJ5151539606
ADAMTS-20AJ5151549606
ADAMTS-20AJ51275310090

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

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Text2Knowledge ... Yong Huang 2002