. . . . . . . . . . . . "[The study showed that frequencies of alleles HLA-DR7 and HLA-A1/B12 were higher in Helicobacter pylori-positive duodenal ulcer patients with family history of peptic ulcer (RR = 4.00 and RR = 11.92, respectively p < 0.05).]. 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 . "2014-10-02T12:39:23+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .