Ugrasena, I., Sutaryo, S., Supriadi, E., Vroling, L., Cloos, J., Hooijberg, J. and Veerman, A. 2016. High frequency of the 3R/3R polymorphism in the thymidylate synthase enhancer region in Indonesian childhood acute lymphoblastic leukemia. Paediatrica Indonesiana. 46, 3 (Oct. 2016), 103-12. DOI:https://doi.org/10.14238/pi46.3.2006.103-12.