Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
C4sNM_02143910090C4ST    C4ST1    C4ST-1    Chst11    120810
C4SBC0123729606CO4    C4A    120810
C4SNM_0072939606CO4    C4A    120810

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

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Text2Knowledge ... Yong Huang 2002