1. The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
2. Department of Radiology & Nuclear Medicine, Erasmus MC, University Medical Center, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.
3. Image Analysis, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
4. Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
5. Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.