Affiliation: | 1. Netherlands Interdisciplinary Demographic Institute (NIDI-KNAW)/University of Groningen, the Hague, the Netherlands.; 2. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, United States of America.; 3. Molecular Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.; Institute of Psychiatry, UNITED KINGDOM, |