DNA Demethylating Activity of Hydralazine in Cancer Cell Lines Research Article E de la Cruz-Hernandez, E Perez-Cardenas, L Taja-Chayeb, A Chavez-Blanco, C Trejo-Becerril, J Trujillo, Volume 2011: LSMR-30 JL Medina-Franco, A Dueñas-Gonzalez Accepted: March 8, 2011; Published: July 30, 2011