Characterization of HIV risks in a Brazilian sickle cell disease population - Blatyta, P. F; Kelly, S; Goncalez, T. T; Carneiro-Proietti, A. B; Salomon, T; Miranda, C; Sabino, Ester Cerdeira; Preiss, L; Maximo, C; Loureiro, P (Bmc public health, 2020)