1 From the Departments of Psychiatry and of Anatomy and Neurosciences, VU University Medical Center, Amsterdam; Amsterdam Neuroscience, Amsterdam; Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne; the Department of Clinical Neuroscience, Centre for Psychiatric Research and Education, Karolinska Institutet, Stockholm; the Imaging Genetics Center, Keck School of Medicine, USC, Marina del Rey, Calif.; and SU/UCT Medical Research Council Unit on Anxiety and Stress Disorders, Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa.