NIDA Notes covers drug abuse research in the areas of treatment and prevention, epidemiology, neuroscience, behavioral science, health services, and AIDS. The publication reports on research; identifies resources; and promotes communication among clinicians, researchers, administrators, policymakers, and the public. Readers are encouraged to identify subject areas they would like to see highlighted.

NIDA Notes is a publication of the U.S. Government produced by the National Institute on Drug Abuse. Use of funds for printing this periodical has been approved by the Director of the Office of Management and Budget. Except for material specifically identified as copyrighted, all materials appearing in NIDA Notes are in the public domain and may be reproduced without permission. Citation of the source is appreciated.

Editor: David Anderson, Public Health Advisor, Public Information and Liaison Branch, Office of Science Policy and Communications, National Institute on Drug Abuse

Deputy Editor: Julie Ann Miller, Ph.D., MasiMax Resources, Inc.

Managing Editor: Andrew Keegan, MasiMax Resources, Inc.

Senior Writer: Lori Whitten, Ph.D., MasiMax Resources, Inc.

Associate Editor: Debra P. Davis, MasiMax Resources, Inc.

Design/Layout: Maggie Bray, MasiMax Resources, Inc.

Editorial Board: David Anderson, Chair; Public Health Advisor, Public Information and Liaison Branch, Office of Science Policy and Communications

Nicolette Borek, Ph.D., Research Psychologist, Division of Clinical Neuroscience and Behavioral Research

Jessica Campbell Chambers, Ph.D., Health Science Administrator, Division of Epidemiology, Services and Prevention Research

J.C. Comolli, Public Health Advisor, Division of Pharmacotherapies and Medical Consequences of Drug Abuse

Jennifer Elcano, M.A., Science Writer, Office of Science Policy and Communications

Lynda Erinoff, Ph.D., Associate Director, AIDS Research Program, Division of Epidemiology, Services and Prevention Research

Marsha F. Lopez, Ph.D., Health Science Administrator, Division of Epidemiology, Services and Prevention Research

Gerald McLaughlin, Ph.D., Chief, Grants Review Branch, Office of Extramural Affairs

Mary Ellen Michel, Ph.D., Deputy Director, Center for the Clinical Trials Network

Ivan Montoya, M.D., M.P.H., Medical Officer, Division of Pharmacotherapies and Medical Consequences of Drug Abuse

Mary Pfeiffer, M.L.S., M.A.,Editor and Writer, Intramural Research Program

Joni Rutter, Ph.D., Program Director, Genetics and Molecular Neurobiology Research Branch, Division of Basic Neuroscience and Behavioral Research

Anna Staton, M.P.A., Public Health Analyst, Office of Science Policy and Communications

Frank Vocci, Ph.D., Director, Division of Pharmacotherapies and Medical Consequences of Drug Abuse

Cora Lee Wetherington, Ph.D., Psychologist, Behavioral and Cognitive Science Research Branch, Division of Basic Neuroscience and Behavioral Research

This publication was produced and printed by MasiMax Resources, Inc., under Contract No. N01DA-4-1117 from the National Institute on Drug Abuse.