Anita Boelen, PhD, is a Professor of Thyroid Hormone Metabolism, in particular molecular and diagnostic aspects, in the Endocrine Laboratory at the Amsterdam UMC, University of Amsterdam. She received a PhD in Thyroid Hormone Metabolism from the University of Amsterdam (Department of Endocrinology, AMC). She is a basic scientist with a research focus on thyroid hormone metabolism in innate immune cells and on mechanisms involved in congenital central hypothyroidism. She has published more than 150 peer-reviewed publications as well as several book chapters. Anita Boelen is also head of the regional Dutch Neonatal Screening program at the Endocrine Laboratory and responsible for the measurements in heel prick blood of neonates born in the region Noord Holland and Flevoland.