Effect of high- versus moderate-intensity exercise on lymphocyte subpopulations and proliferative response. - Nieman,DC.; Miller,AR.; Henson,DA.; Warren,BJ.; Gusewitch,G.; Johnson,RL.; Davis,JM.; Butterworth,DE.; Herring,JL.; Nehlsen-Cannarella,SL. (Int J Sports Med, 1994)