1. Center for Vaccines and Immunity, Columbus Children's Research Institute, Columbus, OH 43205
2. Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10021
3. Chiron Corporation, Emeryville, CA 94608
4. Centocor, Malvern, PA 19355
5. Division of Viral Pathogenesis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215
6. Department of Pediatrics, College of Medicine and Public Health, The Ohio State University, Columbus, OH 43205