The trial investigates the feasibility and efficacy of targeting Non-Small Cell Lung Cancer (NSCLC) "driven" by epigenetic changes. The investigators study the impact of 5-azacitidine (Vidaza®, Celgene, Summit, NJ, USA) in combination with conventional cytotoxic chemotherapy in a sequential fashion. The study population consists of all NSCLC patients who undergo "curative" lung cancer resection and whose tumors harbor hypermethylation in any of the protocol-specific genes (samples will be banked for additional molecular testing including other 21 loci which have shown to be important in lung carcinogenesis.