1. Program for Metabolic Bone Disorders, Division of Endocrinology Vanderbilt University Medical Center Nashville TN USA
2. Division of Bone and Mineral Diseases, Department of Internal Medicine Washington University School of Medicine St. Louis MO USA
3. Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children–St. Louis St. Louis MO USA
4. Departments of Medicine and Pediatrics, Division of Endocrinology Indiana University School of Medicine Indianapolis IN USA
5. College of Education and Behavioral Sciences, Arkansas State University Jonesboro AR USA