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Scatterplot diagrams demonstrating the DNA methylation levels of lncRNAs FENDRR (a), FEZF1-AS1 (b) and SVIL-AS1 (c) in lung tumours compared to adjacent normal lung tissue. The horizontal dotted line in each diagram defines the 95% reference range (= mean + 2 × Standard deviation) of the normal tissues. Tumour samples with values over this line are classified as hypermethylated.
