1. Department of Pharmacology, Physiology, and Neuroscience (Dr Sweitzer);
2. Department of Surgery, Physiology, and Neuroscience (Or Fann, Dr Yost);
3. Department of Cell and Developmental Biology and Anatomy (Dr Borg);
4. Department of Chemistry and Biochemistry (Dr Baynes), University of South Carolina, School of Medicine, Columbia, South Carolina.