. . . . . . . "[We have ascertained 87 Danish patients with an early-onset form of PD (age at onset < or =40 years, or < or =50 years if family history is positive) in a multicenter study in order to determine the frequency of PARK2 mutations.]. 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 . "2017-10-17T13:15:11+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .