1. Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences and the Central Arkansas Veterans Health Care System, Little Rock, Arkansas
2. Knowledge and Evaluation Research Unit in Endocrinology, Mayo Clinic, Rochester, Minnesota
3. Division of Endocrinology, Department of Medicine, University of Florida, Gainesville, Florida
4. Unit of Endocrinology, Diabetes Mellitus and Metabolism, Aretaieion Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
5. Division of Endocrinology, Department of Medicine, National University of Ireland, Galway, Ireland