Recent recommendations from ATA guidelines to define the upper reference range for serum TSH in the first trimester match reference ranges for pregnant women in Rio de Janeiro

by Nathalie Anne de Oliveira e Silva de Morais, Annie Schtscherbyna Almeida de Assis, Carolina Martins Corcino, Débora Ayres Saraiva, Tatiana Martins Benvenuto Louro Berbara, Carolina Donner de Drummond Ventura, Mario Vaisman, Patrícia de Fátima dos Santos Teixeira