1. Behavioral Genetics of Addiction Laboratory, Department of Psychology Emory University Atlanta Georgia USA
2. Department of Psychiatry Washington University St. Louis Missouri USA
3. Department of Medical and Molecular Genetics Indiana University School of Medicine Indianapolis Indiana USA
4. Department of Psychology Emory University Atlanta Georgia USA
5. Jackson Laboratories Bar Harbor Maine USA
6. Department of Psychiatry University of California San Diego La Jolla California USA
7. Institute for Genomic Medicine University of California San Diego La Jolla California USA
8. Department of Biochemistry and Molecular Biology, School of Medicine Indiana University Indianapolis Indiana USA