Monitoring the safety of a smallpox vaccination program in the United States: Report of the joint Smallpox Vaccine Safety Working Group of the Advisory Committee on Immunization Practices and the Armed Forces Epidemiological Board

John Neff, John Modlin, Guthrie S. Birkhead, Gregory Poland, Rose Marie Robertson, Kent Sepkowitz, Clyde Yancy, Pierce Gardner, Gregory C. Gray, Toby Maurer, Jane Siegel, Fernando A. Guerra, Tim Berger, W. Dana Flanders, Robert Shope