Clinical, laboratory, and molecular characteristics of a cohort of children with hemoglobinopathy S/beta-thalassemia Érica Louback Oliveira; André Rolim Belisário; Natiely Pereira Silva; Paulo Val Rezende; Maristela Braga Muniz; Larissa Maira Moura Oliveira; Cibele Velloso-Rodrigues; Marcos Borato Viana;