. . . . . . . . . . . . "[Placental protein 13 (PP13) is a placenta specific protein and with its decreased maternal serum levels in the first trimester it is one of the most promising markers to predict the syndrome in early pregnancy.]. 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 . "2014-10-02T12:36:59+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .