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 26 should read: "Three subjects dropped out in the first 2 weeks of phase 1. Two patients on placebo cited lack of efficacy; one subject randomly assigned to divalproex was jailed for parole violation."