Cytomegalovirus viremia and graft versus host disease boost the continuous increase of CD57+CD28-CD8+ T cells early after bone marrow transplantation - Mendes, A. V. A.; Machado, C. M.; Pannuti, Cláudio Sérgio; Benard, G.; Menezes, R.; Dulley, Frederico Luiz; Evans, T. G.; Salomão, R.; Kallas, E. G. (International Cytomegalovirus Workshop, 2003)