Iron Deficiency Is a Risk Factor for Thyroid Dysfunction During Pregnancy: A Population-Based Study in Belgium, Moreno-Reyes, Rodrigo, Corvilain Bernard, Daelemans Caroline, Wolff Fleur, Fuentes Peña Camilo, and Vandevijvere Stefanie , Thyroid, Jan-12-2021, Volume 31, Issue 12, (2021)