. . . . . . . . . . . . "[The frequency of the B27 antigen was significantly increased among patients with a family history of symmetrical polyarthritis compared with blood donor controls (p less than 0.001) and with patients without a family history of polyarthritis (p less than 0.005).]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2014-02-25"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:39:44+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .