G6PD activity in 35-day stored RBCs. Comparing storage in SAGM with PAGGGM (A) and comparing 2- and 35-day stored RBCs (B). The bar chart represents the mean + standard deviation of G6PD activity of RBCs in the transfusion bag before transfusion. The line chart depicts the mean ± standard deviation of G6PD activity in the recovered RBCs after transfusion.