1. Endocrine Surgery, Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
2. Department of Molecular and Comparative Pathobiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
3. Departments of Surgery, Mayo Clinic, Rochester, Minnesota.
4. Division of Endocrine Surgery, University of Michigan Health System, Ann Arbor, Michigan.
5. Endocrine Surgery Section, Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York.
6. Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota.
7. Departments of Pathology and Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan.
8. Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.