1. Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler (X.G.).
2. Department of Physiology and Pharmacology, University of Georgia, Athens (X.G., K.D., C.L., Z.X., S.-Y.C.).
3. Department of Surgery (D.C., S.-Y.C.), School of Medicine, University of Missouri, Columbia.
4. Now with NIH Clinical Center, Bethesda, MD (K.D.).
5. Now with College of Veterinary Medicine, Huazhong Agricultural University, China (Z.X.).
6. Department of Medical Pharmacology and Physiology (S.-Y.C.), School of Medicine, University of Missouri, Columbia.