TY - GEN AU - World Health Organization. Global Alert and Response Team ED - World Health Organization. Advisory Committee on Variola Virus Research. Meeting (4th: 2002: Geneva, Switzerland). TI - WHO Advisory Committee on Variola Virus Research : report of the fourth meeting, Geneva, Switzerland, 20-21 November 2002 PY - 2003/// CY - Geneva : PB - World Health Organization KW - Variola virus KW - Growth and development, genetics KW - Orthopoxvirus KW - Viral vaccines KW - Research ER -