. . . . . . . "[A black man with a prolonged partial thromboplastin time has a severe deficiency of plasma thromboplastin antecedent (PTA) (factor XI) measured both in clotting assays and immunoassays, suggesting a diagnosis of homozygous PTA deficiency.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:12:35+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .