1Lombardi G, Matera R, Minervini MM, et al. Serum levels of cytokines and soluble antignes in polytransfused patients with beta-thalassemia major:relationship to immune status. Haemstologica, 1994,79(5):406.
4Reinherz EL, Schlossman SF. Current concepts in immunology. Regulation of immune response inducer and suppressor T lymphocyte subsets in human beings, N Engl J Med, 1980,303:370.
