Monitoring for HHV-6 infection after renal transplantation:: evaluation of risk factors for sustained viral replication - Luiz, Claudia R.; Machado, Clarisse Martins; Canto, Cynthia L M; Christ, Silvia C.C.; Pestana, Jose Osmar Medina; Kotton, Camille N.; Camargo, Luis F.A. (Transplantation, 2013)