Granzyme B, FAS-ligand and perforin expression during acute cellular rejection episodes after kidney transplantation: comparison between blood and renal aspirates - Netto, M. V. P.; Fonseca, Benedito Antonio Lopes da; Dantas, Márcio; Saber, L. T. S.; Castro, M. C. R.; Ferraz, Agenor Spallini (Transplantation Proceedings, 2002)