AUTHOR=Kucharska Anna Małgorzata , Waśniewska Małgorzata Gabriela TITLE=Editorial: Thyroid disorders in children below 3rd year of life: Age-related specificity and challenges JOURNAL=Frontiers in Endocrinology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2022.1029078 DOI=10.3389/fendo.2022.1029078 ISSN=1664-2392