John H. Menkes, Professor Emeritus,

Neurology, University of California, Los Angeles, California

Regina Rabinovich, Chief, Clinical Studies Section, and Assistant Director,

Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland

Marion E. Ray, Attorney,

Hunt, Lees, Farrel & Kessler, Charleston, West Virginia

Robert G. Sharrar, Director,

Report Evaluation and Safety Surveillance, Merck Research Laboratories, West Point, Pennsylvania

Howard R. Six, Vice President,

Research and Development, Connaught Laboratories, Inc., Swiftwater, Pennsylvania

Paul D. Stolley,* Professor and Chairman,

Department of Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, Maryland

Cynthia J. Howe, Project Director

Kathleen R. Stratton, Interim Director,

Division of Health Promotion and Disease Prevention

Michael A. Stoto, Senior Staff Officer

Dorothy Majewski, Senior Project Assistant

Jennifer K. Holliday, Senior Project Assistant

Donna Thompson, Administrative Assistant

Margie Patlak, Science Writer