1. Division of Laboratory and Genomic Medicine, Washington University School of Medicine, St. Louis, MO
2. Distinguished Professor of Medicine, University of Auckland, Auckland, New Zealand
3. Professor of Medicine, Physiology and Biophysics, Director General Clinical Research Unit, Director of Bone Health Care Clinic at Boston University Medical Center, Boston, MA
4. Professor of Medicine, Harvard Medical School, Chief, Division of Nephrology, Massachusetts General Hospital, Boston, MA
5. Group Leader–Bioanalytical Science, Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD