. . . . . . . "[Median age at onset was lower in patients with the SPG4 or SPG7 mutation (39 [range, 29-69] years), but there was considerable overlap with patients with the PLS phenotype (52 [range, 32-76] years).]. 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 . "2017-10-17T13:16:24+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .