1. Endocrine Service, G.V. (Sonny) Montgomery VA Medical Center, University of Mississippi Medical Center, Jackson, Mississippi 39216
2. Division of Endocrinology, University of Mississippi Medical Center, Jackson, Mississippi 39216
3. Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi 39216
4. Department of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center, Jackson, Mississippi 39216
5. Department of Physiology, Dartmouth Medical School, Lebanon, New Hampshire 03755