| Mark Reimers | Michigan State University |
| Mark Reimers | Michigan State University |
| Brien P Riley | Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University |
| Jonathan Flint | Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, University of California-Los Angeles. |
| Kenneth S Kendler | Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University |