. . . . . . . . . . . . "[The incidence of an extra marker chromosome in the normal population is low, about 0.26 per 1,000, and that of trisomy 21 is about 1.25 per 1,000.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2015-02-27"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2015-08-25T14:47:28+02:00"^^ . . . . . . . . . . . "v3.0.0.0" . "v3.0.0" .