1. From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm; the Departments of Genetics, Psychiatry, and Nutrition, University of North Carolina, Chapel Hill, N.C.; the Department of Psychiatry, Washington University School of Medicine, St Louis; the Norwegian Centre for Mental Disorders Research (NORMENT), K.G. Jebsen Centre for Research on Neuropsychiatric Disorders, University of Oslo and Oslo University Hospital, Oslo; the Lundbeck Foundation Initiative for...