The role of IL-2 activated natural killer cells on macrophage infection by Leishmania in vitro - Aranha, F. C. S.; Laurenti, Marcia Dalastra; Ribeiro Junior, U.; Basse, P. H.; Sato, M. T.; Monteiro, H. P.; Oliveira, C. J.; Corbett, Carlos Eduardo Pereira (Worldleish, 2001)