1. Laboratory of NeuroGenetics, Department of Psychology & Neuroscience; Duke University; Durham; NC; USA
2. Center for Integrated Molecular Brain Imaging; Neurobiology Research Unit; Copenhagen; Denmark
3. Department of Psychology; University of Pittsburgh; Pittsburgh; PA; USA
4. Genetic Epidemiology Program, Department of Psychiatry; University of Texas Health Sciences Center at San Antonio; San Antonio; TX; USA