The third edition of The Parathyroids, led by a new stellar editorial team, has been thoroughly updated to reflect the considerable advances in just about every aspect of PTH biology over the past decade. It continues to be the authoritative reference that spans the basic science of parathyroid hormone treatment to major clinical disorders in a superb, single compendium. This translational resource is invaluable to graduate students, fellows, researchers, and research clinicians in the fields of endocrinology, bone biology, osteology, and rheumatology.

Shiri Appleby stars in this American Christmas comedy. After spending Christmas Eve alone, 34-year-old Kristin (Appleby) awakens the next morning to discover she has been transported 17 years into the past to relive a disastrous Christmas with her now estranged family. But this time she has the opportunity to change her past and future by helping her 17-year-old self (Hannah Marks) to avoid some of her previous mistakes.

This issue of Endocrinology and Metabolism Clinics, edited by Dr. Michael A. Levine, will focus on Hypoparathyroidism. Topics include, but are not limited to, Signs and symptoms of hypoparathyroidism, Embryology of the parathyroid glands, Physiology of parathyroid hormone, Epidemiology of hypoparathyroidism, Surgical hypoparathyroidism, Medical hypoparathyroidism, Genetic disorders of parathyroid development and function, Autoimmune hypoparathyroidism, Skeletal Manifestations of hypoparathyroidism, Renal manifestations of hypoparathyroidism, Quality of life and other targets of hypoparathyroidism, Pseudohypoparathyroidism, Conventional treatment of hypoparathyroidism, and New Directions in Treatment.