in vitro addition of purified human interleukin-2 ( il-2 ) during the generation of ctl resulted in significant enhancement ( p less than 0.05 ) of ctl activity in arc group ( mean +/- s.d . ; 27 +/- 18 ) but not in aids group ( mean +/- s.d . ; 8 +/- 8 % ) .
C0086418
human
C0021756
interleukin-2