We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDevelopmental Timing of Exposure to Elevated Levels of Phenylalanine Is Associated with ADHD Symptom ExpressionAuthorsAntshel, Kevin; Waisbren, SusanPublicationJournal of Abnormal Child Psychology, 2003, Vol 31, Issue 6, p565ISSN0091-0627Publication typearticleDOI10.1023/A:1026239921561