[1] Univ Med Ctr Utrecht, Dept Child Psychiat, Utrecht, Netherlands
[2] Psycho Med Ctr, Dept Adult ADHD, The Hague, Netherlands
[3] Vrije Univ Amsterdam, Dept Clin Neurpsychol, Amsterdam, Netherlands
[4] Radboud Univ Nijmegen Med Ctr, Dept Psychiat, Nijmegen, Netherlands