a significant trendp < 0.009
A significant trend towards increased risk was observed in the potentially less protective genotype GSTM1 / CYP1A1 ( p < 0.009, (Χ 2 trend test).
A significant trend towards increased risk was observed in the potentially less protective genotype GSTM1 / CYP1A1 ( p < 0.009, (Χ 2 trend test).