Low urinary selenium levels are associated with iodine deficiency in Brazilian schoolchildren and adolescents - Campos, Renata de Oliveira; Jesus, Lorena Maia de; Morais, Déborah Araújo; Sousa Júnior, Wellington Tavares de; Souza, Vanessa Cristina de Oliveira; Oliveira, Clotilde Assis; Barbosa Júnior, Fernando; Macedo, Mariana; Hegedüs, Laszlo; Ramos, Helton Estrela (Endocrine, 2021)