Zhu, R.; Wu, Y.; Lu, F.- juan; Wang, A.- hong; Tang, J.- yang; Zhao, J.- cai; Chen, C.; Xia, Z.- lin. Polymorphisms and Haplotypes of XRCC1 and APE1 and Risk of Childhood Leukaemia in China: A Case-Control Analysis. Eur J Oncol Env Hea 2008, 13 (3), 187-192.