1. Department of Endocrinology, Landstuhl Regional Medical Center, Landstuhl, Germany.
2. Department of Endocrinology, Tripler Army Medical Center, Honolulu, Hawaii.
3. Department of Clinical Investigation, Walter Reed National Military Medical Center, Bethesda, Maryland.
4. Endocrinology and Metabolism Division, Walter Reed National Military Medical Center, Bethesda, Maryland.
5. Division of Endocrinology, Metabolism, and Nutrition, Mayo Clinic, Jacksonville, Florida.