The influence of age and gender on serum dehydroepiandrosterone sulphate (DHEA-S), IL-6, IL-6 soluble receptor (IL-6 sR) and transforming growth factor beta 1 (TGF-beta1) levels in normal healthy blood donors. - Young,D.G.; Skibinski,G.; Mason,J.I.; James,K. (Clin Exp Immunol, 1999)