1. Department of Psychiatry; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
2. Department of Psychological and Brain Sciences; University of Louisville; Louisville Kentucky
3. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
4. Department of Medical Science; Örebro University; Örebro Sweden
5. Department of Genetics; Virginia Commonwealth University; Richmond Virginia
6. Department of Psychiatry; Virginia Commonwealth University; Richmond Virginia