Gamma interferon modulates CD95 (Fas) and CD95 ligand (Fas-L) expression and nitric oxide-induced apoptosis during the acute phase of Trypanosoma cruzi infection: a possible role in immune response control - Martins, Gislâine A.; Vieira, Leda Q.; Cunha, Fernando de Queiroz; Silva, João Santana da (Infection and Immunity, 1999)