Use3culture medium which cultivate through each of circumjacent hema-sampling from both group for the research on microkernel rate,sibling chromatid exchanged rate and chromosome aberrance rate of the configuration and number.

• 采取研究组和对照组中每一例的外周血样本 ,各培养3个培养物 ,分别用于进行微核率、姐妹染色单体交换率、染色体结构和数目畸变率等指标的研究。