Genetic polymorphisms of the TYMS gene are not associated with congenital cardiac septal defects in a Han Chinese population. oleh Jian-Yuan Zhao, Jing-Wei Sun, Zhuo-Ya Gu, Jue Wang, Er-Li Wang, Xue-Yan Yang, Bin Qiao, Wen-Yuan Duan, Guo-Ying Huang, Hong-Yan Wang