Preparation of this edition was sponsored by the Association for Prevention Teaching and Research (formerly Association of Teachers of Preventive Medicine (ATPM)), Washington, DC. APTR is the national professional association of academic professionals dedicated to interprofessional health promotion and disease prevention education and research. APTR provides essential linkages to bring together individuals and institutions from all professions to advance health promotion and disease prevention. For more information about APTR, call 202/463-0550, e-mail info@aptrweb.org, or visit the www.aptrweb.org.