Prof. Saadet Olcay Evliyaoğlu, MD, is Professor of Pediatrics and Pediatric Endocrinology and Head of the Division of Pediatric Endocrinology at Istanbul University–Cerrahpaşa, Türkiye. She is President of the Turkish Society for Pediatric Endocrinology and Diabetes and Founding Co-Chair of the ESPE Thyroid Working Group. Her key interests include thyroid disorders, iodine deficiency, disorders of sex development, and growth disorders, with more than 200 scientific publications and book chapters.