title: Congenital Hypothyroidism (CH); thyroid function abnormalities among first-degree relatives of Iranian CH neonates *

Kamal Heidari****, Ali Sajadi*****, Masoomeh Dastanpour******, Ali Ajami*******, Silva Hovsepian ********, Ashraf Aminoroaya********* Bahar Dehghan********** * MD, Full professor of pediatric endocrinology, Isfahan endocrinology and metabolism research center, Isfahan University of medical sciences, Isfahan, Iran. ** Last Year Medical Student, Isfahan Medical Students Research Committee, Isfahan University of medical sciences, Isfahan, Iran. *** MD, Full professor of endocrinology, Isfahan endocrine and metabolic research center, Isfahan University of medical sciences, Isfahan, Iran. **** MD, Executive of Isfahan Health Center, Isfahan University of medical sciences, Isfahan, Iran. ***** MD, Technical assistant director of Isfahan Health Center, Isfahan University of