DLK1 and neoplasm: In four of five tumours with hypermethylation of the GTL2 promoter DMR, heterozygosity at a DLK1 SNP (c.564T>C) (n=−2) or at closely linked microsatellite markers (D14S598, D14S1426, D14S749 and D14S1006) excluded 14q32 maternal allele loss as a cause of the GTL2 promoter DMR hypermethylation.