. . . . . . . . . . . . "The smallpox vaccination plan : challenges and next steps : hearing of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Eighth Congress, first session, on examining the federal role and its implementation of a national smallpox vaccination program, focusing on prevention and preparedness strategies, January 30, 2003"@en . . . . "The smallpox vaccination plan challenges and next steps : hearing of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Eighth Congress, first session, on examining the federal role and its implementation of a national smallpox vaccination program, focusing on prevention and preparedness strategies, January 30, 2003"@en . . . . . .