Special Issue: Superhighways for Disease
From the Regional Health Education Department, Kaiser Permanente Medical Care Program, Northern California Region, Oakland, California.
Address reprint requests to: David S. Sobel, MD, Regional Health Education, Kaiser Permanente Medical Care Program, 1950 Franklin St., 17th Floor, Oakland, CA 94612.
Received for publication June 2, 1994; revision received October 25, 1994