1. Institute for Disorders of Impulse and Attention, School of Psychology, University of Southampton, U.K.
2. Department of Experimental Clinical & Health Psychology, Ghent University, Belgium.
3. Department of Child & Adolescent Psychiatry, University of Dundee, U.K.
4. Child Development Center, University of California at Irvine, Irvine, California.
5. UCB-Pharma SA/NV, Global Medical Affairs, Brussels, Belgium.