Nationally and internationally recognized clinicians and researchers combine the latest understanding of thyroid physiology and pathophysiology with the most up-to-date clinical knowledge to help clinical endocrinologists and primary care physicians understand and treat a wide variety of thyroid disorders from birth to old age. Topics range from neonatal thyroid screening, thyroid dysfunction during infancy and childhood, peripartum thyroid disorders, and thyroid disease in the elderly to the pathogenesis and treatment of nodular goiter, thyroid cancer, thyrotoxicosis, and hypothyroidism. The book takes advantage of the latest clinical thinking and of the newest findings of the molecular biology of thyroid hormone action.