The levels of CD95 expression vary according to NHL types. CD95 expression has been analyzed by flow cytometry on nontumoral B cells (n = 9), BLCL (n = 5), LCL (n = 10), MCL (n = 10), FL (n = 11), and DLCL (n = 9). Cells were stained with anti-CD95 MoAb CH-11 or with IgM control MoAb followed by PE-conjugated antimouse IgM. The MFI value was calculated by subtracting the IgM control MFI value from the anti-CD95 MoAb MFI value. Bars indicate the mean of MFI values within each entity.