101. Fecci, P.E., et al., Increased regu latory T-cell fraction amidst a diminished CD4 compartment explains cellular immune defects in patients with malignant glioma. Cancer Research, 2006. 66(6): p. 3294-302. 102. El Andaloussi, A., Y. Han, and M.S. Lesniak, Prolongation of survival following depletion of CD4+CD25+ regulatory T cells in mice with experimental brain tumors. J Neurosurg, 2006. 105(3): p. 430-7.