1. Department of Pharmacology, Vanderbilt University, Nashville, Tennessee 37232, United States
2. Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
3. Bristol-Myers Squibb Co., Research & Development, 5 Research Parkway, Wallingford, Connecticut 06492 United States
4. Davos Pharma, A Davos Chemical Company, 600 East Crescent Ave., Upper Saddle River, New Jersey 07458, United States
5. Center for the Neurobiology of Addiction Treatment, Wake Forest School of Medicine, Medical Center Boulevard Winston-Salem, North Carolina 27157, United States
6. Vanderbilt Kennedy Center, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States