1. Division of Bone and Mineral ResearchDepartment of Oral Medicine, Infection, and ImmunityHarvard School of Dental MedicineBostonMassachusettsUSA
2. Unit of Physiology, Pathophysiology, and Experimental EndocrinologyUniversity of Veterinary MedicineViennaAustria
3. Endocrine UnitMassachusetts General Hospital and Harvard Medical SchoolBostonMassachusettsUSA
4. Division of Renal MedicineDepartment of Clinical Sciences, Intervention, and TechnologyKarolinska InstitutetStockholmSweden