Demographic characteristics and prevalence of serologic markers among blood donors who use confidential unit exclusion (CUE) in São Paulo, Brazil: implications for modification of CUE polices in Brazil - Almeida-Neto, Cesar de; Liu, Jing; Wright, David J.; Mendrone-Junior, Alfredo; Takecian, Pedro L.; Sun, Yu; Ferreira, João Eduardo; Chamone, Dalton de Alencar Fischer; Busch, Michael P.; Sabino, Ester Cerdeira (Transfusion, 2011)