From the Division on Addictions and Department of Pediatrics (S.L., J.R.K.), Harvard Medical School; Division of General Pediatrics (S.L., J.R.K.), Center for Adolescent Substance Abuse Research (S.L., J.R.K.), and Division of Adolescent/Young Adult Medicine (J.R.K.), Children's Hospital, Boston, Massachusetts; and Department of Pediatrics (J.F.W.), University of Texas Health Science Center, San Antonio, Texas.
Received for publication July 2, 2008; accepted August 17, 2008.
Send correspondence and reprint requests to Sharon Levy, MD, Children's Hospital Boston/CeASAR, 300 Longwood Avenue, Boston, MA 02115. e-mail: email@example.com.