1. Endocrine Surgery Program, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
2. Section of Endocrine Surgery, Department of Surgery, University of California, San Francisco
3. Endocrine Surgery Program, Department of Surgery, University of Chicago, Chicago, Illinois
4. Division of Head and Neck Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland