WHO Advisory Committee on Variola Virus Research: Report of a WHO meeting. Geneva, Switzerland, 6-9 December 1999
WHO/CDS/CSR/2000/1
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WHO Advisory Committee on Variola Virus Research: Report of a WHO meeting. Geneva, Switzerland, 6-9 December 1999
II. III. IV. 4.1 4.2 4.3 4.4 4.5 4.6 4.7 V. Annex 1
Introduction