Association of Salt Iodization and Urine Iodine Concentration in Schoolchildren from Public Schools in Northeast of Brazil. - de Oliveira Campos R; Lima SCR; de Souza Braga Filho J; de Jesus JS; Anunciação SM; Martins GF; de Jesus LM; Dos Anjos Santana A; de Oliveira Souza VC; Júnior FB; Ramos HE (Biological trace element research, 2021)