PCR-based procedures were used to identify homozygous deletion of GSTT1 and GSTM1 genes and two polymorphic loci (A1578G, C2293T) in GSTP1 gene.

• 本研究采用PCR及PCR-RFLP方法对GSTT1，GSTM1的缺失多态性以及GSTP1基因的两个位点A1578G和C2293T的多态性进行了分析。