. . . . . . . . . . . . "[To determine whether genetic mechanisms play a role in the activation of PDGFR-RAS/MAPK signalling in medulloblastoma, we performed a direct sequence analysis of the established mutational `hotspots` of known targets of activating mutations within the pathway (PDGFRA, NRAS, KRAS, HRAS and BRAF) and PDFRFB, in a cohort of 28 primary tumours.]. 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 . "2014-10-02T12:33:59+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .