Double-blind placebo-controlled trial of methylphenidate in the treatment of adult ADHD patients with comorbid cocaine dependence. - Schubiner,H.; Saules,KK.; Arfken,CL.; Johanson,CE.; Schuster,CR.; Lockhart,N.; Edwards,A.; Donlin,J.; Pihlgren,E. (Exp Clin Psychopharmacol, 2002)