1. National Institute on Drug Abuse, Rockville, Maryland, and Department of Health Policy and Management, George Washington University, Washington, D.C. (Jones); Department of Medicine, University of Chicago, Chicago (Staab, Wan, Quinn, Chin, Laiteerapong); Dunigan Family Department of Nursing and Health Sciences, University of Evansville, Evansville, Indiana (Schaefer); MidMichigan Community Health Services, Houghton Lake, Michigan (Gedeon); Midwest Clinicians' Network, East Lansing, Michigan (Campbell).