. . . . . . . . . . . . "[A great deal of evidence has shown that non-human leucocyte antigen (HLA)-B27 genes may play crucial roles in the aetiology of ankylosing spondylitis (AS), but there is little evidence of a relationship with tumour necrosis factor (TNF)alpha gene variation.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2015-02-21"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2016-05-13T12:42:36+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .