| Affiliation: | (1) Neuroscience of Drug Abuse Research Program, Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA;(2) Department of Pharmacology, Pennsylvania State University College of Medicine/Milton S. Hershey Medical Center, Hershey, PA 17033, USA;(3) Department of Physiology & Pharmacology, Wake Forest University Health Sciences, Medical Center Blvd., Winston-Salem, NC 27157, USA;(4) Present address: Department of Biology, Division of Natural Sciences & Mathematics, Saint Augustine’s College, Raleigh, NC 27610, USA;(5) Present address: Biogen Idec, Research Triangle Park, NC 27709, USA |
