The article "Divalproex Treatment for Youth With Explosive Temper and Mood Lability: A Double-Blind, Placebo-Controlled Crossover Design" by Stephen J. Donovan, M.D., et al. (May 2000, pp. 818–820) contains an error on page 819. In the Results section, the sentence beginning on line 10 should read: "The DSM-IV diagnoses found in these children were ADHD (four subjects), marijuana abuse (six subjects), and disruptive behavior disorder (oppositional defiant disorder or conduct disorder; all subjects a priori).