1. Department of Internal Medicine and Surgery, Medstar Washington Hospital Center, Washington, District of Columbia.
2. Department of General Surgery, Medstar Washington Hospital Center, Washington, District of Columbia.
3. Department of Radiology, Mercy Fitzgerald Hospital, Darby, Pennsylvania.
4. Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona.
5. Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
6. Department of Nuclear Medicine, Bergonié Institute, Bordeaux, France.
7. Department of Nuclear Medicine, Medstar Washington Hospital Center, Washington, District of Columbia.
8. Department of Endocrinology, Medstar Washington Hospital Center, Washington, District of Columbia.
9. Department of Surgery, Medstar Washington Hospital Center, Washington, District of Columbia.