1. Department of Medicine; Duke University School of Medicine; Durham NC USA
2. Social Science Research Institute; Duke University; Durham NC USA
3. Center for the Study of Aging and Human Development; Duke University; Durham NC USA
4. Department of Psychology and Neuroscience; Duke University; Durham NC USA
5. Department of Psychiatry and Behavioral Sciences; Duke University School of Medicine; Durham NC USA
6. Center for Genomic and Computational Biology; Duke University; Durham NC USA
7. MRC Social, Genetic, and Developmental Psychiatry Centre; Institute of Psychiatry, Psychology, and Neuroscience; King's College London; London UK
8. Dunedin Multidisciplinary Health and Development Research Unit; Department of Psychology; University of Otago; Dunedin New Zealand