1. Clark SJ, Melki J (2002) DNA methylation and gene silencing in cancer: which is the guilty party? Oncogene 21: 5380–5387
2. Cui J, Yang DH, Bi XJ, Fan ZR (2001) Methylation status of c-fms oncogene in HCC and its relationship with clinical pathology. World J Gastroenterol 7: 136–139
3. Di Renzo MF, Olivero M, Ferro S, Prat M, Bongarzone I, Pilotti S, Belfiore A, Costantino A, Vigneri R, Pierotti MA (1992) Overexpression of the c-met/hgf receptor gene in human thyroid carcinomas. Oncogene 7: 2549–2553
4. Dottori M, Down M, Huttmann A, Fitzpatrick DR, Boyd AW (1999) Cloning and characterization of EphA3 (Hek) gene promoter: DNA methylation regulates expression in hematopoietic tumor cells. Blood 94: 2477–2486
5. Elisei R, Romei C, Vorontsova T, Cosci B, Veremeychik V, Kuchinskaya E, Basolo F, Demidchik EP, Miccoli P, Pinchera A, Pacini F (2001) RET/PTC rearrangements in thyroid nodules: studies in irradiated and not irradiated, malignant and benign thyroid lesions in children and adults. J Clin Endocrinol Metab 86: 3211–3216